Justin TimberlakeJustin TimberlakeForget the Oscars... one of the toughest hosting gigs has got to be the Kids' Choice Awards.

And this year, Justin Timberlake was in the hot seat.

But it looks like he did a grand job of entertaining the audience - as well as squirting them with his gunk gun.

But it wasn't just the gathered fans who left the event covered in the green stuff, JT also managed to get several of his A-list presenters top-to-toe in slime, too.

He had a running battle with Vince Vaughn, while the likes of Tobey Maguire and Steve Carell only had themselves to blame.

But Justin didn't just dish out the gunk - he was also on the receiving end himself, which goes some way to explaining his many outfit changes during the event.

Justin on a gunk rampageJustin on a gunk rampageSee Justin's hosting job in the gallery above.