LOS ANGELES -- Green slime spewed furiously at the Kids' Choice Awards on Saturday, where "Twilight Saga" star Kristen Stewart and British boy band One Direction won two awards apiece.

Slideshow: Kids' Choice Awards 2013

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Stewart, 22, escaped the slime but plunged her hands into the green goo, saying she "felt like I have finally found my kindergartner self," as she accepted trophies for movie actress and favorite female butt kicker.

Organizers said more than 350 million votes were cast online in more than 20 categories, spanning film, television, books, music and sport for the stunt-filled annual award show on youth channel Nickelodeon.

Hosted by "Transformers" actor Josh Duhamel, who is married to singer Fergie, the show in Los Angeles featured performances by Pitbull and Christina Aguilera, as well as Ke$ha.

Johnny Depp and Katy Perry accepted orange blimp-shaped trophies for favorite female singer and movie actor respectively and both stars had words of wisdom for the audience of kids and young teens.

"This is such a cool award ... stay safe, stay in school, don't do drugs," Perry told them. Depp said he was "truly honored and humbled. Thank you for what you are, which is the future."

Selena Gomez, 20, the ex-girlfriend of pop star Justin Bieber, took the female TV actress award for her Disney Channel series "Wizards of Waverly Place," even though the show came to an end more than a year ago.

Bieber, who is on tour in Europe, was voted favorite male singer and was among several stars who did not make it to accept their award in person

No-shows included One Direction, who are also on tour and who won for favorite music group and song for "What Makes You Beautiful," "X Factor" judge Simon Cowell (favorite villain), and Ross Lynch, 17, who was named favorite TV actor for Disney Channel's pop star series "Austin & Ally."

Sandra Bullock, Neil Patrick Harris, Duhamel, Pitbull, Nick Cannon, Dwayne "The Rock" Johnson and dozens of audience members got covered in slime gushing out from water cannons, presenter's podiums, ceilings, and even the tail of a fake gymnastic horse.

Other awards went to Nickelodeon's "Victorious" for top TV show, "The Hunger Games" for favorite movie, "Wreck-It Ralph" for top animated movie, and race car driver Danica Patrick and basketball player LeBron James for top athletes.

The Kids Choice Awards will be broadcast around the world in more than 25 languages, Nickelodeon said.

2013 Nickelodeon Kids' Choice winners, via E! Online:

Television:

Favorite TV Show: "Victorious"
Favorite Reality Show: "Wipeout"
Favorite Cartoon: "SpongeBob SquarePants"
Favorite TV Actor: Ross Lynch ("Austin & Ally")
Favorite TV Actress: Selena Gomez ("Wizards of Waverly Place")

Film:

Favorite Movie: "The Hunger Games"
Favorite Movie Actor: Johnny Depp ("Dark Shadows")
Favorite Movie Actress: Kristen Stewart ("The Twilight Saga: Breaking Dawn - Part 2")
Favorite Animated Movie: "Wreck-It Ralph"
Favorite Voice from an Animated Movie: Adam Sandler ("Hotel Transylvania")
Favorite Male Buttkicker: Dwayne Johnson ("Journey 2: The Mysterious Island")
Favorite Female Buttkicker: Kristen Stewart ("Snow White and the Huntsman")

Music:

Favorite Music Group: One Direction
Favorite Male Singer: Justin Bieber
Favorite Female Singer: Katy Perry
Favorite Song: "What Makes You Beautiful" (One Direction)

Sports:

Favorite Male Athlete: LeBron James
Favorite Female Athlete: Danica Patrick

Other Categories:

Favorite Villain: Simon Cowell ("The X Factor")
Favorite Book: "The Hunger Games" series
Favorite Video Game: "Just Dance 4"
Favorite App: "Temple Run"

LOS ANGELES -- The green slime flowed so much that even first lady Michelle Obama could not escape it at the Kids' Choice Awards on Saturday where singers Justin Bieber and Taylor Swift came away big winners.

Slideshow: Kids' Choice Awards

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The program is an annual stop for Hollywood stars who are popular among teenage and young viewers watching the Nickelodeon cable TV network, and this 25th anniversary was no exception.

Hosted by "Men in Black" movie star Will Smith, the awards featured performances by Katy Perry and British boy band One Direction, who performed their hit "What Makes You Beautiful" from the album "Up All Night."

But as always, the green slime was the biggest star at the show where Bieber won favorite male singer in fan voting.

On stage, Bieber took the orange blimp trophy from Smith, then the show's host had a surprise for the 18-year-old pop star. Bieber was also voted by fans as the celebrity they most wanted to see get slimed, and the green goo flowed from the rafters and water cannons aimed at the stage.

There was so much goo splashing around in the finale that it splattered on the face of a surprised first lady.

Obama was on hand at the popular show to give the "big help" blimp trophy to country star Swift.

The honor, bestowed on Obama two years earlier for her work with kids fitness and health, goes to a celebrity who has devoted time and energy to charitable causes. Swift was singled out for her work to stop bullying and for providing aid to tornado victims in the southern United States.

Swift "rocketed to the top of the music industry, but still keeps her feet on the ground," Obama said about the 22-year-old country singer, calling her "someone who is going to keep making sparks fly for all of us in the years ahead."

Other winners included made-for-TV band Big Time Rush, named favorite music group.

Selena Gomez, 19, was named favorite female singer for her work with pop band The Scene, as well as favorite TV actress in the "Wizards of Waverly Place," which ended its run on the Disney Channel earlier this year.

"Twilight" stars Kristen Stewart and Taylor Lautner both grabbed orange blimps. Stewart, 21, was named favorite movie actress. Lautner, 20, earned the title best "butt kicker" for his role as werewolf Jacob Black in the vampire romance flicks.

Favorite movie actor was Adam Sandler, 45, known for goofy comedies such as his recent "Jack and Jill."

Nickelodeon's "Victorious" was named top TV show.