Selena Gomez was the big winner at the Nickelodeon Kids' Choice Awards in Los Angeles.

The singer and actress took tahanan two awards, one for Favourite TV Actress for the now defunct Wizards of Waverly Place and a segundo gong for Favourite Female Singer at the ceremony in which over 220 million mga boto were cast.

She said: "After no longer doing my show, knowing you guys still watch it means so much."

Host Will Smith kicked off the night with a rap and promised a record-breaking amount of the slime for which the awards are famous, saying, "No one is ligtas from the slime."

Celebrities including Halle Berry, Glee's Chris Colfer and even Will and Justin Bieber were all covered in the sticky substance during the evening although one guest who managed to avoid it was First Lady Michelle Obama, as she presented Taylor matulin with the Big Help Award in recognition of her philanthropic efforts, including work with US tornado and flood survivors and various youth-related charities.

Taylor said: "I'm so honoured. I have always wanted to meet you; this is amazing. I am so honoured to be receiving this award from the first lady of the United States. I am freaking out. I'm really proud of all of you guys. I see you helping each other out. I think it's important you know you are making a difference in this world."

Katy Perry - who won an award for her work in The Smurfs movie - was the first performer, pag-awit Part of Me and declared: "The only reason I'm here today is because I've never grown up. I can't wait to do Smurfs 2."

Taylor Lautner took tahanan the special blimp shaped award for Favourite Butt Kicker and was forced to complete 1,000 push-ups sa pamamagitan ng host Will before also getting slimed.

Boyband One Direction performed What Makes You Beautiful while Katy, Taylor and Selena proved they are fans of the five piece sa pamamagitan ng dancing in the audience and pag-awit along to all the words.

Kids' Choice Awards Winners 2012

Favourite TV Show: matagumpay
Favourite Reality Show: Wipeout
Favourite TV Actor: Jake Short (A.N.T. Farm)
Favourite TV Actress: Selena Gomez (Wizards of Waverly Place)
Funniest TV Sidekick: Jennette McCurdy (iCarly)
Favourite Cartoon: SpongeBob SquarePants?
Favourite Male Athlete: Tim Tebow
Favourite Female Athlete: Danica Patrick
Favourite Movie: Alvin and the Chipmunks: Chipwrecked
Favourite Movie Actor: Adam Sandler (Jack & Jill)
Favourite Movie Actress: Kristen Stewart (The Twilight Saga: Breaking Dawn, Part 1)
Favourite Animated Movie: Puss in Boots
Favourite Voice from an Animated Movie: Katy Perry (The Smurfs)
Favourite Music Group: Big Time Rush
Favourite Male Singer: Justin Bieber
Favourite Female Singer: Selena Gomez
Favourite Song: Party Rock Anthem (by LMFAO)
Favourite Book: Diary of a Wimpy Kid series
Favourite Videogame: Just Dance 3
Favourite Buttkicker: Taylor Lautner