Turn It Up: Kelly Clarkson, Meghan Trainor, John Oliver & More Sing “Since U Been Gone”

Jimmy Fallon challenges Tonight Show guests Kelly Clarkson, Shaquille O’Neal, John Oliver, Rachel Brosnahan, Mumford & Sons, Meghan Trainor, Anthony Anderson and The Roots to sing Kelly’s hard-to-croon hit “Since U Been Gone.“ Appearance order below: (0:03) - Kelly Clarkson (0:11) - Shaquille O’Neal (0:18) - Jimmy Fallon (0:22) - Rachel Brosnahan (0:25) - John Oliver (0:28) - The Roots (0:35) - Meghan Trainor (0:40) - Mumford & Sons (1:04) - Anthony Anderson Subscribe NOW to The Tonight Show Starr