Taye Diggs and Karrueche Tran will spill all the tea when they go head-to-head on this episode. And Sugar Ray's Mark McGrath tries to catch Full House's Jodie Sweetin slipping, but may just be shocked at the talent she's been hiding.

Michael K. Williams battles Trevor Jackson; James Corden puts his losing streak on the line against a man whose name is synonymous with rap battles: Dr. Phil.