The confident kid then kicks off with his jokes and jibes aimed at the judges.
After suggesting host Ricki-Lee Coulter is "fame hungry" he moves on to Nicole Scherzinger.
"I've got a girlfriend." the cheeky comedian says.
"But I'm going to have to dump her, because there's someone here... hey there, pussycat!"
While we won't reveal all the details of his material (you'll need to watch the show on August 4 for the full spectacle!), his bold talent shines throughout his performance.
Manu Feildel calls JJ the funniest seven year old he's ever met, and Shane shares that where he's standing is where his own career began at the age of 10, on the same Melbourne Palais Theatre stage.
"This venue has been amazing to me, it started my whole career," the judge said.
Tune in to Australia's Got Talent on Sunday at 7pm on Channel 7 to watch JJ's full routine.
