The 25th annual Kids' Choice Awards, which was held in Los Angeles Saturday, was a star-studded event.

Opening the award ceremony was host and Men in Black movie star Will Smith, who made a unique appearance by parachuting onto the stage.

Key performances at the event were by the British boy band One Direction who sang their hit What Makes You Beautiful from the album Up All Night and also by singer Katy Perry who sang the song Part of Me.

US first lady Michelle Obama presented the trophy to country star Taylor Swift.

Other celebrities present at the event were Halle Berry, Twilight star Kristen Stewart, actress Emma Stone, Chris Rock and Nicki Minaj.

Winners for the popular Nickelodeon's annual celebration for kids are selected by means of online voting. Winning the prize for both the favorite TV actress and female singer was the Wizards of Waverly Place actress Selena Gomez. On the other hand, singer Justin Bieber won the award for the favorite male singer in fan voting.

Reuters reported that as Bieber went on stage to collect the trophy, 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 gets slimed, and the green goo flowed from the rafters and water cannons aimed at the stage.

Other winners at the 2012 event include Jake Short as the favorite TV actor, Adam Sandler for favorite movie actor, Kristen Stewart for favorite movie actress, Taylor Lautner for favorite Buttkicker and Tim Tebow for favorite male athlete.

Start the slideshow here to get a glimpse of the celebrities and winners at the 25th Kids' Choice Awards.