Monsta X's Joohoney Takes Leave of Absence, Roddy Ricch's 'The Box' Tops Hot 100 & Cardi B Wants to Get Into Politics | Billboard News

Justin Bieber debuts on the Billboard Hot 100, but doesn't garner the top spot. Monsta X is heading on tour. And Cardi B wants to get involved in politics. Here are the top news stories in music for Monday, January 13th.