First up was Ri Ri an interesting choice, given that her last album was very pointedlynot kid stuff.
How could she adaptRated Rfor the Nickelodeon set?
The camera cut to confused-looking children in the audience.

Credit: Bieber: Kevin Winter/Nickelodeon, Rihanna: Kevin Mazur/KCA2010/WireImage
Instead she and the automatons transitioned into 2007s Dont Stop the Music, always a good choice.
At a show like this, thats six of one, half-dozen of the other.
(Watch Rihannas performance after the jump; h/tRap Radarfor the clip.)
A while later, it was time forOMG JUSTIN BIEBER!!!
That said, the kid hit more than a few flat notes last night.
Did you watch the Kids Choice Awards last night?
What did you think of Rihanna and Justin Biebers performances?