The rockstar returns to get down with an explosive fountain of slime.
Just A Minute Jack
Jack Black is confused by Robin Williams' endless energy.
KCA presenter Jack Black introduces Blimp-winner Ben Stiller.
Slime King Black
Forget the megaphone. Jack Black upgrades to a supersized slime horn!
Justin Timberlake would have no idea what to do if Jack Black wasn't there to shout instructions in his ear.
Jack Black goes wild on Orlando Bloom after their brain transfer.
What are Jack Black and Orlando Bloom doing?! Exchanging brains?!?!
Robin Williams and Jack Black are soaked in slime!
Jack Black stands over presenters Ludacris and Emma Roberts with a loaded slime hose to ensure that they don't make any mistakes.
Super slime hero Jack Black intimidates the crowd with some hardcore karate magic.
It ain't easy being this hilarious! Jack suffers a mid-show meltdown after an overdose of laughs.
Hello 2008 Kid's Choice Awards. I AM JACK BLACK!
Jack addresses the crowd underneath his own oversized head. WEIRD!