MTV.com News — Singer also fills in for an absent Ludacris by rapping the Atlanta MC's part.By Amy Wilkinson Justin Bieber performs at the Kids' Choice Awards on Saturday Photo: Kevin Winter/Getty Images Starry-eyed tweens and celebrities alike (we saw yo... more info

MTV.com News — Katy Perry's sliming and performances from Justin Bieber and Rihanna were among show's standout moments.By Jocelyn Vena Katy Perry and Miley Cyrus at the Kids' Choice Awards on Saturday Photo: Chris Polk/KCA2010/Getty Images The Nickelodeon... more info

MTV.com News — 'Why does it taste like boogers?' singer jokes onstage.By Amy Wilkinson Katy Perry backstage at the Kids' Choice Awards on Saturday Photo: Chris Polk/KCA2010/Getty Images During Saturday's (March 27) 23rd Annual Nickelodeon Kids' Choice Awa... more info

MTV.com News — She sings a medley of her hits 'Hard,' 'Rude Boy' and 'Don't Stop the Music.'By Amy Wilkinson Rihanna performs at the Kids' Choice Awards on Saturday Photo: Jeff Kravitz/FilmMagic Riding a mini pink-camouflage tank, Rihanna took the stage a... more info

MTV.com News — Taylor Lautner, Miranda Cosgrove and Rihanna also stand out at the Nickelodeon awards show.By Jocelyn Vena Justin Bieber arrives at the Kids' Choice Awards on Saturday Photo: Michael Buckner/Getty Images On Saturday night (March 27) in Los ... more info

VH1 News — Justin Bieber is keeping the details of his Kids' Choice Awards performance under wraps. "I don't want to tell anyone," the star said of his song choice. more info

AngryApe — But her little sister is! more info

AngryApe — The 'One Time' star talks about styling his locks more info

411 Mania — More on the big mall riot... more info

411 Mania — Bieber looking at a massive opening sales week... more info