Ye-on
Ye-on began singing around age five or six, was scouted through social media while still in elementary school and trained for roughly two years before debut. She is Hearts2Hearts’ youngest member and was SM’s youngest active idol at debut. Her musical-theater interest and ballad preference point toward a vocal path that the current group catalog has only started to use.

Profile
| Birth name | Kim Na-yeon (김나연) |
|---|---|
| Stage name | Ye-on |
| Born | April 19, 2010 |
| Birthplace | Yangsan, South Gyeongsang Province, South Korea |
| Nationality | South Korean |
| Group | Hearts2Hearts |
| Role | Vocalist · youngest member |
| Group debut | February 24, 2025 with The Chase |
| Agency | SM Entertainment |
| Western zodiac | Aries |
| Chinese zodiac | Metal Tiger |
| Status | Active member · 2025–present |
Aries, without making astrology homework
Aries is fire-sign momentum, courage and the inability to wait politely forever. Ye-on is the youngest member, but her vocal interest and busy group-chat energy suggest she did not join the team to sit quietly in the last row.
Metal Tiger, because the birth year gets a personality too
The Metal Tiger is bold, resilient and more disciplined than the already dramatic Tiger stereotype. That is useful framing for a very young performer carrying public work, school-age scrutiny and real vocal expectations at once.
The career file
Ye-on began singing around age five or six, was scouted through social media while still in elementary school and trained for roughly two years before debut. She is Hearts2Hearts’ youngest member and was SM’s youngest active idol at debut. Her musical-theater interest and ballad preference point toward a vocal path that the current group catalog has only started to use.
Every member shares the same group milestones: the February 2025 debut, a first music-show win fifteen days later, the brighter “STYLE” pivot, the Focus mini album, the 2026 breakout of “RUDE!” and the Lemon Tang summer chapter. This profile separates the shared timeline from the individual work instead of pretending eight people had eight different comebacks.
What to listen and watch for
Vocalist · youngest member. Positions are not rigid contracts in Hearts2Hearts; Jiwoo is the official leader and Juun is consistently identified for dance, while other labels describe visible strengths. Watch full stages, encores, dance practices and reality content before turning a five-second line distribution into permanent law.
The panda side quest
Ye-on likes musicals, ballads, clothes shopping and her cat Leo. She is reportedly the most active member in the group chat, which feels correct for a maknae born after several senior SM groups had already debuted. Her first audition song was Jessie J’s “Price Tag,” and Taeyeon is a role model. The side quest is obvious: find vocal clips before the title tracks decide what kind of singer she is.
Then watch the “STYLE” official video, one Chat Hearts2Hearts episode and the full group profile. The MV shows the public role; the side content shows the human habits that make a profile worth reading.
Fandom notes and things the fact box misses
- Maknae: youngest member, born in 2010.
- Early singer: started singing around age five or six.
- Hakyuha: ALSSONG HAMSSONG, a hamster.
- Group chat: most active member, because silence was never going to be the youngest person’s contribution.
- S2U: the Hearts2Hearts fandom name. Personal accounts should not be invented when the member communicates through official group channels.
- One person, several roles: member, vocalist, dancer, model or future soloist are tags on this same profile – not duplicate humans.