Kids' Choice Awards All-Stars!

Rihanna! Katy Perry! Jonas Brothers! See who blew kisses and who got slimed at Nickelodeon's big night in L.A.

PUCKER UP

Rihanna is pretty in pink on the orange carpet at the Kids' Choice Awards on Saturday. The singer performed a medley of her hits – and even danced with a giant robot during "Rude Boy" – inside L.A.'s Pauley Pavilion.