Too soon, Stevie J. Too soon. Nick Cannon is ready to throw blows over his estranged wife Mariah Carey. WATCH: Mariah Carey Warned Nick Cannon She’d Move On With A Billionaire Cannon and reality star Stevie J reportedly almost got into a huge fist fight on the set of MTV 2’s Wild N Out when the epic freestyle battle round went a little too far between the two guys, TMZ reported Thursday morning.