A few former castmates of the hit show Glee reunited on TNT's Drop the Mic, and things got pretty heated (in a friendly way, of course). Amber Riley, Harry Shum Jr., and Becca Tobin took the stage to battle former costars Kevin McHale, Jenna Ushkowitz, and Heather Morris to see who has the best bars. To give you an idea of how crazy things get, Jenna makes fun of Harry for having such a small role in Crazy Rich Asians and calls out Becca for being "so f*cking white" that her "blood type's mayonnaise." But Becca doesn't back down, and when it's her turn, she stops the music to take "a moment of silence for Jenna's TV career" before bringing the beat back and dropping it low. Above, watch the six costars roast each other so badly, even you'll say, "Ouch."