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AtHeart Member Birthdays
South Korea · Official roster: 7 (0 birthdays recorded)
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Birthdays of all members
| Birthday | Member | Other spellings |
|---|---|---|
| Undisclosed | Arin 이아린 | Arin (AtHeart), Lee Arin |
| Undisclosed | Michi 미치ミチ | Michi Yorkston |
| Undisclosed | Katelyn 케이틀린ケイトリン | Katelyn Angela Ejercito Tan |
| Undisclosed | Bome 봄이봄ボムLee Bom | — |
| Undisclosed | Seohyeon 문서현 | Moon Seohyeon |
| Undisclosed | Nahyun 나현김나현ナヒョン | Kim Nahyun |
| Undisclosed | Aurora roster-only entry 아우로라アウロラ | — |
Roster source: Instagram @atheart.titan (retrieved November 3, 2026)
This page lists all 7 members on AtHeart’s official roster. 6 of them have their own page on this site (our inclusion rule: someone has held a support event for them, or a verifiable identity or birthday source exists). The rest are marked “roster only” and appear only in this table. Birthdays are listed only when we find a verifiable source; otherwise they’re marked “no verifiable source found.” We never fill gaps with guesses. Spotted an error, or have a verifiable official source? Email service@joelin.cc. (email us a report)
Fan Events
Events posted by fans show up here as soon as they’re published. Whether an event is also featured on the home page is a separate pick by Joe and has nothing to do with this list.
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Group support usually centers on debut anniversaries and concerts. Each member’s birthday is in the table above.
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FAQ
- How many AtHeart members are listed on this site?
- AtHeart: Official roster: 7. Of these, 0 have a verifiable birthday recorded on this site. This page lists all 7 members on AtHeart’s official roster. 6 of them have their own page on this site (our inclusion rule: someone has held a support event for them, or a verifiable identity or birthday source exists). The rest are marked “roster only” and appear only in this table. Birthdays are listed only when we find a verifiable source; otherwise they’re marked “no verifiable source found.” We never fill gaps with guesses. Spotted an error, or have a verifiable official source? Email service@joelin.cc.