The 2012 Nickelodeon Kids Choice Awards nominees were announced today. Katy Perry leads the nominations, not only for her music, but also for her voice work in ‘The Smurfs.’ Other nominees include Lady Gaga, Selena Gomez (for her music and her work on ‘Wizards of Waverly Place’), Taylor Swift, Bruno Mars, Justin Bieber and, appropriately enough, Nickelodeon starlet Miranda Cosgrove.

Kids can vote for their favorite artists at Nick.com beginning March 1, with results to be announced at the annual Kids Choice Awards ceremony on Saturday, March 31 at 8PM ET. Will Smith will host the festivities, which include not only live performances and blimp trophies, but also a good amount of the kids’ network’s trademark green slime.

The competition looks fierce this year (Perry is up against Johnny Depp!), but we think a lot of Popcrush artists will take home some trophies.

TELEVISION

Favorite TV Show

‘Good Luck Charlie’

‘iCarly’

‘Victorious’

‘Wizards of Waverly Place’

Favorite Reality Show

‘American Idol’

‘America’s Funniest Home Videos’

‘America’s Got Talent’

‘Wipeout’

Favorite TV Actress

Miranda Cosgrove

Selena Gomez

Victoria Justice

Bridgit Mendler

MOVIES

Favorite Movie

‘Alvin and the Chipmunks: Chipwrecked’

‘Harry Potter and the Deathly Hallows, Part 2′

‘The Muppets’

‘The Smurfs’

Favorite Voice from an Animated Movie

Antonio Banderas, ‘Puss in Boots’

Jack Black, ‘Kung Fu Panda 2′

Johnny Depp, ’Rango’

Katy Perry, ‘The Smurfs’

MUSIC

Favorite Music Group

Big Time Rush

Black Eyed Peas

Lady Antebellum

LMFAO

Favorite Male Singer

Justin Bieber

Toby Keith

Bruno Mars

Usher

Favorite Female Singer

Lady Gaga

Selena Gomez

Katy Perry

Taylor Swift

Favorite Song

Lady Gaga, ‘Born this Way’

Katy Perry, ‘Firework’

LMFAO, ‘Party Rock Anthem’

Taylor Swift, ‘Sparks Fly’