Nickelodeon Kids' Choice Awards Past Pictures

Stars in the Slimelight at the Kids' Choice Awards

Josh Duhamel was the king of the slime in 2011.

The Nickelodeon Kids' Choice Awards roll into LA on Saturday, which means it's time for celebrities to be very afraid — at any moment, they could be slimed. Through the years, we've seen plenty of stars coated in green gunk, from Kristen Stewart's slimy hug to Justin Timberlake's slime fight to Josh Duhamel becoming the reigning king of slime time. Scroll through to see 23 of the best moments of celebs in the slimelight, and then tune in for the show to see who comes out green.

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