Whats the name of that song from the McDonald's commercial?

its that commercial where the little kid is kinda dressed up like M.C Hammer and he's eating those apple dipper things...they play that song at every school dance so it kinda grows on you!! i love it and know most of the lyrics...but i dont know the name!!!!!! can someone tell me???

"Cha Cha Slide" by DJ Casper
::video::http://www.youtube.com/watch?v=eSGUDMKpw...

cha cha slide - Mr. C

RONALD MC DONALD HAS A BAD HAIR DAY....