Not quite the double or triple threats we were expecting... Welcome to WatchMojo, and today were counting down our picks for the worst movie roles of celebrities not typically known for acting. Our countdown includes performances by Jason Derulo, Kelly Clarkson, Rihanna and more! What other case of celebrity acting had you shaking your head in dismay? Let us know in the comments down below!

Check out these other fail videos:
Top 10 SNL Fails That Became Iconic: https://youtu.be/iAaNPkgfVCM?siZv3wgG-hv0o2RyVX
Top 30 Worst Product FAILS of All Time: https://youtu.be/U1gSj8C3Tog?sioyliGXq64LrqBjbx
Top 20 Biggest Game Show Fails of All Time: https://youtu.be/yl-wYpu2x9g?si5pNlcjtsuhJxAgTA

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