This week, three groups make their comeback on Show! Music Core. Jessi returns with her charismatic stage presence, singing "Gucci". Hotshot is back after two years of hiatus with "Jelly". Park Bo Ram comes back singing "Why, You?" with her sweet voice. Other performances include goodbye performances by Kim Tae Woo and Apink, and hot stages by two charming girl groups, Mamamoo and Blackpink.