During a performance of the group's song "Boyfriend," the rapper surprised the audience in the middle of the song. But the surprise was on Snoop when he got hit with a barrage of green goo at the end of the number.
Third-time host Jack Black opened Saturday's show with his own rendition of "I Gotta Feeling" before being joined on stage by the night's Favorite Music Group winner Black Eyes Peas. Lead singer Fergie's husband, Josh Duhamel, walked away with an award himself — "Arm Fart Hall of Famer."
Among the other celebs who were slimed: Jason Segel, Modern Family's Rico Rodriguez, Russell Brand and Jim Carrey. Justin Timberlake escaped the goo after being presented with the Big Help Award for his charity efforts, specifically the work he does with Shriners Hospital for Children.
Check out the list of winners and make sure to check back for our exclusive interviews from the Kids' Choice Awards orange carpet.
Favorite Movie: The Karate Kid
Favorite Animated Movie: Despicable Me
Favorite Voice from an Animated Movie: Eddie Murphy (Shrek Forever After)
Favorite Movie Actor: Johnny Depp
Favorite Movie Actress: Miley Cyrus (The Last Song)
Favorite Song: "Baby," Justin Bieber ft. Ludacris
Favorite Music Group: The Black Eyed Peas
Favorite Male Singer: Justin Bieber
Favorite Female Singer: Katy Perry
Favorite TV Show: iCarly
Favorite Television Actress: Selena Gomez (Wizards of Waverly Place)
Favorite Cartoon: SpongeBob SquarePants
Favorite Reality Show: American Idol
Favorite Television Actor: Dylan Sprouse (The Suite Life on Deck)
Favorite Male Athlete: Shaquille O'Neal
Favorite Female Athlete: Lindsey Vonn
Favorite TV Sidekick: Jennette McCurdy
Favorite Butt Kicker: Jackie Chan
Favorite Video Game: Just Dance 2
Favorite Book: Diary of a Wimpy Kid
Watch our interview with Big Time Rush below: