LOL! Yeah, he was there. He looks very different from his days on AI, but even so, I'm surprised no one on this thread recognized him. (Well, I did, but I recorded the show and watched it long after you all had gone to bed, then forgot to comment the next day.)
Remember when the dude who was singing with Shakira went up on the riser behind the judges? Remember he did the fist bump with a guy in the audience? That was Justin. Interestingly, the AI director didn't flash his name on screen as they do for some of the former contestants.
He probably didn't recognize him either :)