By Lynette Rice
Updated March 28, 2010 at 04:34 AM EDT

Image Credit: Kevin Winter/Getty Any kind of Scream redux should send a sound team to Nickelodeon’s annual Kids Choice Awards. At Saturday night’s awards, held at UCLA’s Pauley Pavilion in Westwood, the mere mention of Justin Bieber’s name was enough to blow out the roof — if not humble those lesser, shriek-worthy stars like Rihanna, who was forced to serve as the kid’s warm-up act (she performed a medley but OMG he sang Baby! from his just-released My World 2.0!)

But the teen idol wasn’t the night’s only highlight for the ‘tween set; host Kevin James (Paul Blart: Mall Cop) opened the 90-minute live show with a sportive dance number, with music provided by an angelic Adam Sandler (literally, he dangled from the ceiling, dressed as an angel). “Get slimed tonight!” Sandler crooned, in a reimagination of KC & the Sunshine Band’s Get Down Tonight.

Much was made of the fact that Sandra Bullock would skip the show because of certain problems at home — but only the winners seem to attend the big show anyway, and it was Miley Cyrus (!) who took home the requisite orange blimp for Favorite Movie Actress. The category ended up providing the night’s most comical moments. First, presenter Katy Perry tripped a box that was supposed to contain the winner’s identity — and ended up getting gobsmacked with a load of green slime (she had to know it was coming but she still seemed genuinely surprised at its impact). Then, fellow presenter Jonah Hill (Superbad) quipped that the award was going to Precious — but then quickly said it belonged to the Hannah Montana star, instead. No one under 30 understood the reference to the Lee Daniels film that earned co-star Mo’Nique her first Oscar this month, but there were still plenty of chuckles in the pavilion.

Zachary Levi (Chuck) had fun with the fact that Alvin and the Chipmunks: The Squeakquel beat out New Moon in the Favorite Movie category (“And to Twilight, sorry!” said Levi). Olympic Gold Medalist Apolo Ohno participated in the annual “death-defying” slime stunt (he was catapulted into a small pool of the icky liquid). And First Lady Michelle Obama taped an acceptance speech for winning Nick’s first-ever Big Help Award for helping kids eat healthy and stay active. Good thing she wasn’t there to accept in person; the massive after-party featured burgers and fries from Burger King and a yummy brownie mousse for dessert. At least there were apple fries!

Here are the night’s big winners (more than 115 million kids cast their votes for this year’s show — a Nick first):

Favorite Movie: Alvin and the Chipmunks: The Squeakquel

Favorite Movie Actor: Taylor Lautner (New Moon)

Favorite Movie Actress : Miley Cyrus (Hannah Montana: The Movie)

Favorite TV Show: iCarly

Favorite TV Actress: Selena Gomez (The Wizards of Waverly Place)

Favorite TV Actor: Dylan Sprouse (The Suite Life on Deck)

UPDATE: And here were some of the other winners who didn’t make the cut for the big show:

Favorite Animated Movie: UP

Favorite Voice From an Animated Movie: Jim Carrey (A Christmas Carol)

Favorite Song: “You Belong To Me” (Taylor Swift)

Favorite Music Group: Black Eyed Peas

Favorite Male Singer: Jay-Z

Favorite Female Singer: Taylor Swift

Favorite Cartoon: SpongeBob SquarePants

Favorite Reality TV Show: American Idol

Favorite Video Game: Mario Kart

Favorite Book: Diary of a Wimpy Kid