Cee Lo Green
To vote for the kca's you go to nick.com and press the ad or thing that is on there that says something about kca's and that will take you to the place where they ask you favorite TV actor or Favorite female singer or something like that.
2010
Justin Bieber played ''BABY''
None. They just performed What Makes You Beautiful! <3
Cee Lo Green
It was Cee Lo Green
Cee Lo Green
My friend said it is Michelle Obama but we just have to see actually it was cee lo green
No!
Despicable Me
I know they will be there, but probably not perform.
I think it was Katy perry
Yes they already have been doing that
He probably wanted to suprise the fans
Just Dance 3
yes he got slimed to day at KCA 2012