*This content was translated by AI.

The group AtHeart has begun a powerful flapping of wings for the global stage.
Athart attended the 42nd My Navi Tokyo Girls Collection 2026 SPRING/SUMMER (hereinafter referred to as the "Tokyo Girls Collection") held at the 1st Gymnasium of the National Yoyogi Stadium in Tokyo on the 14th and heated up the scene.
The "Tokyo Girls Collection" is Japan's representative festival that encompasses fashion and music, and it is a large event where performances by global artists as well as local influential stars and models are held.
On this day, Athart first released a series of double singles "Shut Up" and "Butterfly Doors," which were performed in February and March, drawing enthusiastic responses from local music fans with sensuous and powerful performances.
Athart made a strong impression with his straightforward charm with his confident attitude with "Shut Up." In addition to melting cute and lively energy in the restrained movement, the stage immersion was further enhanced with delicate facial expressions and detailed gestures.
In the subsequent "Butterfly Doors," Athart drew attention by developing delicate movements that stand out among members, centering on the choreography depicting butterflies. In addition to adding a variety of attractions with pair choreography, the domino performance unfolding over time made it impossible to take your eyes off for a moment.
As such, Athart dominated the stage of a large festival with a performance with a unique unexpected charm, signaling a full-fledged global move. In particular, Athart clearly imprinted his potential as a "fifth-generation heart" by performing on the stage of the "Tokyo Girls Collection" before his official debut in Japan.
Meanwhile, Athart is planning to make a comeback with his new song "Butterfly Doors" starting with a domestic music broadcast this week. Prior to this, Athart proved a steep rise in popularity with both "Shut Up" and "Butterfly Doors" topping YouTube's "Daily Shorts Popular Song." In addition, the combined views of the music videos of "Shut Up" and "Butterfly Doors" also exceeded 8 million views at a rapid pace, strengthening Athart's global presence.
<© STARNEWS. All rights reserved. No reproduction or redistribution allowed.>
*This content was translated by AI.
!['No-Bra Confession' Jang Yoon-joo "My chest size is D to G cups" coolly reveals [Star Issue]](https://image.starnewskorea.com/cdn-cgi/image/f=auto,w=271,h=188,fit=cover,g=face/21/2026/05/2026050219175592187_1.jpg)
!['Short-form director' Yoo Jae-suk, tries to cast Byun Woo-seok using Ju Woo-jae... "Am I a staircase?" gets defensive [Nolmwo]](https://image.starnewskorea.com/cdn-cgi/image/f=auto,w=271,h=188,fit=cover,g=face/21/2026/05/2026050218285569207_1.jpg)
![Joo Young-hoon: Late Choi Jin-young's 'Eternal', Lyrics Written on Go So-young's Recommendation [Immortal Songs] [★Night TView]](https://image.starnewskorea.com/cdn-cgi/image/f=auto,w=271,h=188,fit=cover,g=face/21/2026/05/2026050218553856417_1.jpg)
![Shin Ji ♥ Moon Won, marry despite nationwide opposition.. Social: Moon Se-yoon, Congratulatory song: Baek Z Young, Ailee [Comprehensive]](https://image.starnewskorea.com/cdn-cgi/image/f=auto,w=567,h=378,fit=cover,g=face/21/2026/05/2026050216563180036_1.jpg)
![Did the 29th Batch Ok-soon and Young-soo truly break up? Couple photos have disappeared [Star Issue]](https://image.starnewskorea.com/cdn-cgi/image/f=auto,w=567,h=378,fit=cover,g=face/21/2026/05/2026050216542090362_1.jpg)
!["An unpleasant incident last weekend"... Lee Su-hyun's serious expression, what happened? [Star Issue]](https://image.starnewskorea.com/cdn-cgi/image/f=auto,w=567,h=378,fit=cover,g=face/21/2026/05/2026050216400832338_1.jpg)

!['Open Relationship' Yoon-hoo: "Can't Capture the Real Thing"..♥ Already in a Love Fight with Choi Yu-bin? [Star Issue]](https://image.starnewskorea.com/cdn-cgi/image/f=auto,w=567,h=378,fit=cover,g=face/21/2026/05/2026050218432055128_1.jpg)




