AtHeart Official Thread

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BEG4DAWIN

BEG4DAWIN

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AtHeart is a 6-member K-Pop girl group under Titan Content. The group consists of Arin, Michi, Katelyn, Bome, Seohyeon, and Nahyun. They officially debuted on August 13, 2025 with their album Plot Twist.

Originally a 8 member group, Sorin was presumed to have officially left the group after her Instagram account was deleted, following months of inactivity, and her departure was later confirmed by a Teen Vogue article.

Aurora, has been on medial hiatus since before the group official debut.

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Official SNS:
Website: atheart.me
Instagram: @atheart.titan
X: @atheart_titan
Facebook: atheart.me
TikTok: @atheart.titan
Youtube: AtHeart_TITAN
Weibo: @AtHeart_Official
Douyin: AtHeart_Official
BiliBili: AtHeart_TITAN
Xiaohongshu: AtHeart_TITAN​
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BEG4DAWIN

BEG4DAWIN

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Members


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Stage Name: Arin
Birth Name: Lee Arin
Position(s): Leader, main dancer
Birthdate: July 1, 2007
Height: 164 cm (5’4.5″)
Nationality: Korean
Instagram: @arinatheart


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Michi
Birth Name: N/A
Position(s): N/A
Birthdate: May 6, 2007
Height: 174 cm (5’8.5″)
Nationality: Japanese-American
Instagram: @michiatheart


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Katelyn
Birth Name: Katelyn Angela Ejercito Tan
Position(s): N/A
Birthdate: July 24, 2007
Height: 162 cm (5’4″)
Nationality: Filipina
Instagram: @katelynatheart


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Bome
Birth Name: Lee Bom
Position(s): Main vocalist
Birthdate: November 26, 2007
Height: 166 cm (5’5″)
Nationality: Korean
Instagram: @bomeatheart


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Seohyeon
Birth Name: Moon Seohyeon
Position(s): N/A
Birthdate: September 12, 2008
Height: 162 cm (5’4″)
Nationality: Korean
Instagram: @seohyeonatheart


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Nahyun
Birth Name: Kim Nahyun
Position(s): Maknae
Birthdate: September 3, 2009
Height: 172 cm (5’8″)
Nationality: Korean
Instagram: @nahyunatheart



Member on Hiatus


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Aurora
Birth Name: N/A
Position(s): N/A
Birthdate: July 4, 2009
Height: N/A
Nationality: Japanese
Instagram: @auroraatheart



Former Member


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Sorin
Birth Name: N/A
Position(s): N/A
Birthdate: July 9, 2007
Height: N/A
Nationality: Korean
Instagram: @sorinatheart​
 
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BEG4DAWIN

BEG4DAWIN

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✧ Tri.Be ✧
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On July 16, 2024, TITAN CONTENT announced that they are preparing to debut their first US based girl group with the name AtHeart. In the same article, Billboard revealed that AtHeart will make their debut sometime in the first half of 2025.

That same day, the first two members Sorin and Michi were revealed alongside their own individual Instagram accounts in what they called "'Next-Generation' K-pop Strategy"

On November 12 2024, three members Seohyeon, Katelyn and Aurora were revealed.

On February 19 2025, Sorin's reveal post and SNS accounts were deleted, indicating her departure from the group. The same day, the addition of Nahyun, Arin and Bome was announced.

On July 2 2025, it was announced that Aurora would have limited participation in the debut album and would be unable to join in the promotions due to health-related reasons. The debut activities would be carried out by the remaining six-members.​
 
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