What does green slime, Kristen Stewart, and a red carpet have in common? The 2013 Kids' Choice Awards!

Last night, stars including Katy Perry, Ke$ha, and Selena Gomez arrived on the purple red carpet spring-ready in plenty of pastels and patterns. Perry arrived (Mayer-less) in a head-turning bra top and skirt by Hervé Léger by Max Azria, while a very pregnant Fergie wore a colorful rainbow dress with simple jewelry and hair.

No stranger to bizarre outfits, Ke$ha's outfit did not disappoint, wearing a "Willy Wonka" inspired pale blue pastel suit with a top hat and cane. During the show, Ke$ha made an outfit change wearing head-to-toe contrasting patters and flared pants. The whole look was a big disaster!



Check out all the biggest hits and misses from the 2013 Kids' Choice Awards!