Bolbbalgan4 and Baekhyun will team up to release a pre-released single on May 7.
Bolbbalgan4 unveiled its “Puberty Book II ” promotion schedule on its official SNS on April 29.
Moreover, Bolbbalgan4 will release the album on the 13th after its pre-released single “Butterfly and Cat” at 6 p.m. on the 7th. EXO’s Baekhyun will feature on the single “Butterfly and Cat.”
Baekhyun is also set to return as solo in May.
