The Nickelodeon Kids' Choice Awards are this weekend and in the music categories, Usher is representing for R&B.  He's up against his protege Justin Bieber in the category of Favorite Male Singer, which also includes pop star Bruno Mars and country music star Blake Shelton.

The awards show is hosted by Josh Duhamel, and airs Saturday, March 23, live from USC's Galen Center at 8 p.m. ET/PT.  

Here are all the music nominees:

Favorite Music Group
Big Time Rush
Bon Jovi
Maroon 5
One Direction

Favorite Male Singer
Justin Bieber
Bruno Mars
Blake Shelton
Usher

Favorite Female Singer
Adele
Katy Perry
Pink
Taylor Swift

Favorite Song
"Call Me Maybe" (Carly Rae Jepsen)
"Gangnam Style" (PSY)
"We Are Never Ever Getting Back Together" (Taylor Swift)
"What Makes You Beautiful" (One Direction)

Copyright 2013 ABC News Radio