Saturnday: Current Members, Former Members, History, Music and 2026 Guide

Saturnday is a Taiwanese T-pop boy group formed from contestants connected to the Saturn teams of Atom Boyz. The current lineup is Jimmy, Elvis, KJ and PAN. Marvin and Chunwei left in February 2026 after participating in the group’s original and six-member chapters. This hub preserves all three configurations without turning one music-video lineup into a permanent fact.

Quick group file

• Country: Taiwan
• Market: T-pop / Mandarin pop and dance performance
• Debut: November 2023 with “Beat The Best”
• Current members: Jimmy, Elvis, KJ and PAN
• Former members: Marvin and Chunwei
• Six-member era: April 2025 to February 2026
• Official fandom reference: Saturn-ring supporters / 土星環
• Exact local React: “Last Dance”

Saturnday is T-pop, not a spelling mistake

The name combines the Saturn identity inherited from Atom Boyz with “day,” echoing the historical language roots behind Saturday as Saturn’s day. It should not be silently corrected to Saturday, confused with the Korean girl group SATURDAY, or filed as a Korean act merely because its training and dance vocabulary are legible to K-pop audiences. Accurate labeling expands the archive: Taiwan has its own idol systems, survival programs, media routes and language context.

The group began after elimination

The first Atom Boyz season dissolved Saturn through competition. Tang Lijie, Chen Shuifeng, Zhang Junwei and Liu Xinmin did not receive a simple group-debut prize. Elvis was saved into Uranus and finished with the winning team, while the future original members had to decide whether the Saturn connection deserved a life beyond the program. Saturnday is therefore a post-survival-show construction in the literal sense: it built a professional act out of relationships the format had already declared finished.

Crowdfunding proved skill had an audience

Before the formal debut, the members offered an online dance-course project supported by fans. The campaign exceeded its goal quickly. That matters more than a generic sentence about loyal fandom because it identifies the exchange: supporters were not only buying sympathy for eliminated contestants; they were buying access to dance instruction. Saturnday’s first durable asset was bodily knowledge. The later emphasis on high-intensity choreography was not invented for “Last Dance.” It grew from the work that kept the members visible during the gap.

Beat The Best carried too much expectation

The November 2023 debut single announced confidence but could not by itself solve distribution, recognition and release frequency. Jimmy later spoke about disappointment with the response and fear that a second song might not arrive. Small groups are often described as “underrated” as if the word explains a business model. Here the consequence was concrete: long waits, commercial appearances, auditions, additional dance training and reliance on fans to maintain attention between official releases.

The 2025 expansion changed the group’s architecture

KJ and PAN joined through a project tied to “Last Dance.” Both came from Atom Boyz 2, so the final six connected two seasons of the franchise. Adding two people changed formation width, center rotation, vocal distribution and the emotional ownership of the group story. The new members could not claim the original elimination, but they brought their own experience of being contestants asked to become professionals in public. The single uses transformation as the shared point where those histories meet.

Last Dance is a threshold, not a funeral

The song drew partly from Chunwei’s military-service transition and the newcomers’ move into the group. Its title and visual language invite farewell readings, but the release was designed as a restart. Marvin choreographed the demanding routine, the members learned it under compressed preparation, and thirty additional dancers expanded the official video’s scale. The local React follows how a six-member era announced itself with the visual language of an ending. In retrospect, it also became an important record of the last lineup before the 2026 departures.

Marvin’s choreography is credited group history

The “Last Dance” chorus gesture and broader routine were designed by then-leader Marvin. Profiles often praise synchronization while leaving choreography ownerless. This hub keeps the credit attached to him even after departure. A former member can remain a creative contributor to a canonical release. Preserving that labor is more accurate than either pretending every move came from an unnamed teacher or treating the choreography as invalid once its maker left the roster.

The February 2026 departure created the current four

Saturnday announced that Marvin and Chunwei were leaving for personal planning. The archive has no basis for inventing a fight, assigning blame or reading private contract language into a concise public notice. The correct status is enough: Jimmy, Elvis, KJ and PAN are current; Marvin and Chunwei are former. “Go! Saturnday” sits near that transition and was described as a commemorative release for the six-person chapter, so participation should be checked at the exact-video level rather than inferred from publication date alone.

Four members create a different performance problem

A six-member formation can build symmetry through pairs and layers. Four bodies leave cleaner geometry and more exposed responsibility. The current lineup cannot simply perform the old spacing with two holes closed. Vocal handoffs lengthen, center transitions become obvious, and every member must sustain more of the visual argument. That pressure can be useful. If the group develops new choreography around four rather than shrinking the six-member template, the lineup change can produce a clearer signature instead of permanent comparison.

The catalog is small enough to audit exactly

“Beat The Best,” “Last Dance,” the Re: Last material and “Go! Saturnday” form a compact recorded chronology. The tracker should distinguish official music videos, audio-only platform releases, performance versions and later commemorative material. A short catalog does not justify vague grouping; it makes every object more important. One duplicate or misassigned member relationship can distort a large percentage of the public record.

The group’s sound still needs a name of its own

Saturnday’s dance power is easier to describe than its musical fingerprint. “Beat The Best” and “Last Dance” provide force, ambition and performance scale, but survival-story framing can overshadow sound. PAN’s stated goal of producing a representative song points toward the necessary next step. The group needs a track that listeners recognize as Saturnday before they are reminded of Atom Boyz, elimination or lineup history.

Member ambitions can strengthen the hub

Jimmy brings teaching and dance-competition experience. Elvis has pursued acting and hosting. KJ has trained for acting and wants a dedicated group concert. PAN is developing production work. Marvin’s choreography and Chunwei’s post-service fitness direction remain part of the former-member archive. These are not random “fun facts.” They show six ways the members have tried to create labor around a small catalog, and they identify future routes the hub must track without collapsing every individual project into group participation.

International discovery requires the right search terms

Use “Saturnday Taiwan,” the Chinese member names, official stage names and exact video IDs. Searching only “Saturday group” produces a Korean girl group and unrelated Western acts. Start with the official YouTube and Instagram accounts, then use Apple Music for dated releases and Taiwanese press for interviews. Translation tools can help, but chronology should still be anchored to the primary object: an official post, release page or exact upload.

Image cards must reflect the page they open

This hub uses a dedicated six-member press image because it explains the “Last Dance” chapter. Each member profile uses a different real portrait, not a repeated group thumbnail. The React retains its own official-video still. Featured image, first hero, landing card, Open Graph and Twitter image must agree within each page while remaining distinct across pages. That is how a static directory becomes a trustworthy visual index instead of seven links wearing the same face.

What changed from six to four

The most important correction is not cosmetic. A 2025 article correctly described a six-member group; a 2026 profile that repeats it as current is wrong. This hub preserves dates so both sources remain intelligible. KJ and PAN joined in April 2025. Marvin and Chunwei departed in February 2026. Jimmy and Elvis connect the original chapter to the current one. Current status is a snapshot with a date, not an attempt to rewrite every earlier photograph.

The next update rule

Random future Saturnday songs should receive an exact React, a tracker row and a current-participation check. The hub and only the profiles of members who actually participate should be updated. Tea or Rant coverage is optional when the evidence supports a real story; it is not required to manufacture controversy around a release. If the roster changes again, edit these canonical pages in place. Do not clone them into “v2” biographies.

How to read the official channel

The official channel contains music videos, dance material and promotional clips, but upload order alone is not a complete discography. A practice video may clarify choreography without becoming a new song, and a commemorative upload may preserve a lineup that was no longer current on publication day. Track the exact video ID, displayed title, publication context and visible participants. That object-level method keeps “Last Dance” connected to six members while leaving room for the quartet’s later chronology.

Why publicity feels almost invisible outside Taiwan

Saturnday’s discovery problem is partly structural. Mandarin titles, local press ecosystems, survival-show history and a name that collides with common search terms create friction before a listener reaches the music. International fans often encounter one performance through recommendations without receiving an English-language route to the members. The answer is not to relabel the group as K-pop. It is to build accurate bilingual search hooks, stable profiles and direct official links that let curiosity travel.

What international coverage should translate

Translation should carry more than names and birthdays. It should explain that Atom Boyz is Taiwanese, that Saturn was eliminated, that the act later formed independently, and that the 2025 and 2026 rosters differ. Those facts make the performance richer. Reducing the group to “Taiwanese K-pop style” removes the exact industry conditions that shaped its persistence, while repeating machine-translated rumors creates a false sense of access. Context is the useful bridge.

A four-member comeback needs its own visual grammar

The quartet has an opportunity to make change visible rather than disguise it. Four-member choreography can use squares, diagonals, mirrored pairs and rapid center rotation with unusual clarity. Camera blocking can stay wider long enough for those shapes to register. If future work is staged specifically for Jimmy, Elvis, KJ and PAN, the audience will see a current group building forward instead of a reduced version of a six-member photograph.

Production may become the bridge to identity

PAN’s interest in composing is strategically important even if none of his works should be counted before release. Member-created music can connect the group’s physical language to a sound designed from inside the formation. That does not guarantee quality or require every track to be self-produced. It does create a plausible route toward the representative song Saturnday still needs: music shaped by knowledge of how these particular performers breathe, move and divide a stage.

The archive must resist premature endings

“Last Dance,” two departures and a small discography can tempt coverage into a tidy rise-and-fall story. The evidence does not support that ending. A current four-member roster exists, later material exists, and the members continue to describe future ambitions. The archive should neither promise success nor declare the act finished. Its job is to timestamp what is known, preserve earlier contributions and remain ready to attach the next verified release to the right people.

What a trustworthy landing card promises

A static image card should answer three questions before the click: which person or group is this, what kind of page will open, and is the image actually connected to that subject? Saturnday’s hub and member cards use unique local real photographs with matching heroes and featured images. Titles state current or former status where needed. The page then fulfills that promise with reciprocal routes, not a generic biography disconnected from the music that introduced the reader.

The editorial bottom line

Saturnday deserves coverage because the work is compelling, not because obscurity automatically makes an act virtuous. “Last Dance” demonstrates scale, physical conviction and an unusually literal transformation story. The weak point is discoverability and the unfinished search for a signature sound. The strongest next chapter would pair the quartet’s cleaner geometry with a song whose identity travels beyond the survival-show explanation. Until then, exact documentation is how international listeners can follow without losing the plot.

A practical international follow list

Start with the official YouTube channel for complete releases and choreography, then use the official Instagram account for roster notices and schedules. Save the exact Apple Music artist route rather than searching the name from scratch each time. On CVM Sekai, the group hub is the stable directory: it connects the six-member “Last Dance” React to all participating profiles while marking the current quartet clearly. That combination lets an international listener follow closely without depending on rumor accounts or hoping an algorithm serves the next upload.

Current members

Jimmy — Liu Xinmin (劉新民). Born April 27, 2000. A graduate of Chungyu University of Film and Arts, Jimmy has worked as a children’s dance teacher and continued entering dance and K-pop competitions after Atom Boyz. Jimmy has spoken plainly about the disappointment after “Beat The Best” underperformed and the fear that another single might never arrive. His profile therefore carries the group’s waiting period as lived career context, not a decorative adversity paragraph.

Elvis — Tang Lijie (唐立杰). Born August 18, 2001. A graduate of Hwa Kang Arts School, Elvis survived the Saturn team’s elimination on Atom Boyz, was saved into Uranus, and finished the program with the winning team before later debuting in Saturnday. Elvis has said he wants acting and hosting work beyond group promotion. In 2026 he was credited in the drama Turn Around and Wipe Your Tears, evidence that the ambition was becoming a concrete route rather than a vague profile wish.

KJ — Liu Kaijie (劉凱杰). Born March 8, 2002. KJ studied at Lee-Ming Institute of Technology, competed on Atom Boyz 2, and joined Saturnday through the 2025 “Last Dance” special selection project. KJ has pursued acting classes and said he wants to challenge any role that helps him grow. He also identified a dedicated Saturnday concert as a goal, tying his individual acting ambition to the need for the group to become recognizable on its own terms.

PAN — Pan Yongan (潘永安). Born October 29, 2003. PAN studied at Lee-Ming Institute of Technology, competed on Atom Boyz 2, and joined Saturnday with KJ through the 2025 special selection project. PAN wants to create a representative song that Taiwanese listeners immediately associate with Saturnday. That goal addresses the group’s real strategic problem: strong dance identity and survival history are memorable, but a durable act also needs a musical signature that belongs to nobody else.

Former members

Marvin — Chen Shuifeng (陳水豐). Born September 14, 1998. Marvin is an Amis dancer and choreographer from Hualien who trained from childhood, competed with Saturn on Atom Boyz, became Saturnday’s leader and built much of its dance identity. Marvin left Saturnday in February 2026 for personal life planning. The profile preserves his leadership and choreography without listing him as current, and it does not invent conflict or private motives beyond the group’s official announcement.

Chunwei — Zhang Junwei (張峻瑋). Born October 4, 2002. Chunwei competed with Saturn on Atom Boyz, returned to the group after military service, and participated in the six-member “Last Dance” chapter. Chunwei discussed rebuilding fitness after service and interest in becoming a fitness coach. He left Saturnday with Marvin in February 2026 for personal planning; current status must remain separate from his credited place in “Last Dance” and the original four-member era.

Official music starting points

• Last Dance — official music videoDaily+62Total views1.3M
• Saturnday official YouTube channel
• Official Apple Music discography

Sources

• Saturnday official Instagram and roster announcements
• Mirror Media: six-member interviews and member data
• Tipa-supplied Last Dance release details
• Apple Music release chronology

React image cards

Static cards route each exact official upload to its own in-depth React. Every card repeats that React’s featured and hero image so the archive stays visually traceable.