Having gone through member changes and a new concept, the U-KISS boys are finally back with their brand new 5th mini album, and are also returning to the Music Core stage. Their new title song, "0330", stands for 3:30 AM � a time of restlessness for those who have yet to fall asleep. It tells the story of a man who is unable to sleep after breaking up with his girlfriend. His grieving heart is expressed soulfully through the song's soft lyrics and melody. Check out their slick comeback performance!