Boy group (MY.st) is shaking fans' hearts with their spectacular performances.

MY.st has been eye-catching with the public through music shows since it launched its official debut in Korea with its first mini-album "The Glow: Eden." MY.st announced the emergence of a talented group with its debut song "Don't Know," featuring sweet vocals, powerful performances, and rapping.

In particular, MY.st presented a dreamy atmosphere with five-color facial expressions and fatal eyes on the stage, while also captivating viewers with its point choreography that emphasized hand gestures.

(Don't know) is a pop dance song that expresses clumsy feelings of love, and member Woo-jin participated in writing and composing the song himself, revealing a wide musical spectrum.

MY.st, which is emitting infinite charm, is a group of Lee Woo-jin, Kim Joon-tae, Lee Min-ho, Jung Won-chul and Kim Gun-woo, who have built up solid skills through various stage experiences through their activities in Japan before their official debut in Korea. MY.st is active as Don't know and continues to communicate through its official SNS channel.