After their hit record Smart and making their debut stage at Coachella, LE SSERAFIM (KIM CHAEWON, SAKURA, HUH YUNJIN, KAZUHA & HONG EUNCHAE) is back and hotter than ever with their 4th Mini Album titled CRAZY. Contents of the album include CD, outer box, booklet (80 page), lyric book (16 page), sticker (3 each), postcard, folding poster, photocard (random 1 of 5), paper toy and photocard.