Audio teaser of BTOB members Seo Eun kwang, Lee Min hyuk and Lee Chang sub's digital single " Sorry." Has been unveiled.

Cube Entertainment released an audio teaser video of their digital single "Sorry," via BTOB's official SNS at midnight on April 3.

The released teaser video features the highlight of "Sorry," along with lyrics written on white paper.

The digital single "Sorry" is the last unpublished song prepared by BTOB members Seo Eun kwang, Lee Min hyuk and Lee Chang sub before joining the military, and is a ballad song by Medium Tempo by Lee Min hyuk, has proven his ability to writing, composing and producing the entire song of his first solo full album "HUTAZONE" released in January.

The digital single "Sorry" is expected to be a perfect gift for fans who miss the voices of Seo Eun kwang, Lee Min hyuk, Lee Chang sub.

BTOB's digital single "Sorry" by Seo Eun kwang, Lee Min hyuk and Lee Chang sub is released on various online music sites at 6 p.m. on April 5.