Jimmy Fallon Brings Together Kelly Clarkson and Other Celebrities To Sing “Since U Been Gone”

Jimmy Fallon challenged a few of his Tonight Show guests to a sing off.

Many celebrities and even a few of your favorite Mix artists like Kelly Clarkson, Meghan Trainor and Mumford and Sons made an appearance in the video.

Check out the above and sing along to Kelly Clarkson’s, “Since U Been Gone.”



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