Demi Lovato was a guest on The Late Late Show with James Corden last night, where she challenged him to a good old “A Cappella Diva Riff-Off.”

 

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The two sang hits from diva superstars Adele, Cher, Aretha, Tina Turner and Katy Perry! Check out the video and let us know who you think aca-crushed it! ;)

Filed under: Demi Lovato, James Corden, The Late Late Show With James Corden