After hitting up the music scene with "Baby I'm Sorry," the boys of B1A4 are back once more with the release of their special track titled "Baby Good Night" ("Sleep Well Good Night")!

On May 23rd, B1A4 released a repackaged, special edition of their album 'Ignition', and the title song "Sleep Well Good Night", which was composed by�Jinyoung and written by both�Jinyoung and�Baro,�drew much attention ahead of its release with the individual teasers of the members.

B1A4 took the stage to perform their newest track. Check it out below, and the rest of today's 'Music Core'�performances here!

-