We've known Kenan Thompson was a hysterical ham ever since he first lit up the stage on the throwback Nick comedy series, All That. So we were totally stoked to hear that he's making a cast clash crash landing at the biggest bash of the year! That's right, Kenan Thompson is guest starring on iParty with Victorious and it's gonna be hi-larious. We caught him clowning around backstage with the rest of the superstar cast, and he was layin' down all the laughs. Check it out.