Justin Bieber, 'The Karate Kid' Win Big at Kids' Choice Awards 2011

Katy Perry, Johnny Depp and Miley Cyrus also took home top honors at the children's awards show hosted by Jack Black.

The Karate Kid won favorite movie and iCarly nabbed favorite TV show at Saturday night's Kids Choice Awards 2011, hosted by comedian Jack Black.

Among the stars honored were Johnny Depp and Miley Cyrus, who received the awards for favorite movie actor and actress. Dylan Sprouse and Selena Gomez took home the top TV acting prizes.

Despicable Me won favorite animated movie, while Eddie Murphy was voted favorite voice actor for his part in Shrek Forever After.

On the music side, Justin Bieber was the clear frontrunner, landing favorite song for "Baby" and favorite male artist. Katy Perry won favorite female singer, while the Black Eyed Peas were named favorite music group over the Jonas Brothers in the evening's biggest upset.

Other honorees included Justin Timberlake, who received Nickelodeon's Big Help Award, and Josh Duhamel, who was inducted into the KCA Arm Fart Hall of Fame after a strong showing in an earlier arm fart contest.

Presenters included big names such as Steven Tyler, Cory Monteith, Russell Brand, Sofia Vergara, Joe Jonas, Jason Segel, Jane Lynch, Heidi Klum, Kim Kardashian and Rosario Dawson.

Of course, Nickelodeon's signature bright green slime was the true star of the show, making appearances during attacks on Black, Duhamel, Klum, Kung Fu Panda character Po and Jim Carrey.

Musical performances from Big Time Rush and Willow Smith and a monster truck stunt that involved flying over a Nickelodeon blimp and landing in a slime pit rounded out the evening.