98 Degrees joins Nickelodeon line-up

The 13th Annual Kids' Choice Awards show is shaping up to be a pop-lovers' dream.

98 Degrees, LFO and Will Smith have just been added to the celebrity list for the show, which will air on Nickelodeon on April 15 at 8 p.m. (ET), MTV reports.

As AllPop reported earlier, Mandy Moore, L.L. Cool J, Melissa Joan Hart and Rosie O'Donnell will also be at the ceremony along with a big-name celebrities such as Robert DeNiro and Mel Gibson.

The Kid's Choice Awards choose 21 winners in categories that cover TV, Music, Sports and Movies, and four other miscellaneous awards.

Will Smith, "Austin Powers: The Spy Who Shagged Me" and "Toy Story 2" have the most nominations.

--AllPop