Actor/comedian Kevin James is to serve as host of the event, which is to air live from UCLA's Pauley Pavilion March 27.
The annual awards show offers children the chance to vote for their favorites in movies, television, music and sports.
"This is the biggest TV event of the year for kids and we are thrilled to have megastars Rihanna and Justin Bieber to perform for them live," Paula Kaplan -- executive vice president of talent for Nickelodeon and an executive producer of the show -- said in a statement Thusrday. "It is going to get loud, and in true Kids' Choice tradition, these performances will be something our audience will never forget."
Notable deaths of 2014 [PHOTOS]