B1A4 had given fans a heads up on the exciting things to come through their�comeback schedule, and Jinyoung's 'couch potato' photo arrived right on schedule!�As seen on the album tracklist, several B1A4 members stepped up their game as maturing artists by taking part in the composing and writing of the tracks. Jinyoung also took the lead with writing, composing, producing, and/or arranging for all the tracks on the album, including the title track.

SEE ALSO: B1A4 celebrates 13th anniversary with sold-out fan concert series

Their agency�WM Entertainment had�stated, "'Solo Day' will be a seasonal song that is perfect for summer in B1A4's style."

Are you ready for their comeback on the 14th?