Jordan Paris, 22, appeared on the Channel Seven program on Tuesday night to laughter from judges Dannii Minogue, Brian McFadden and Kyle Sandilands, who unanimously voted him through to the next round.

Sandilands described his jokes as ''legitimately funny'' while Minogue said he did the Gold Coast ''proud''.

But today it emerged both jokes Paris told in the routine were ripped off from other sources.

The Gold Coast Bulletin this morning reported how one joke - about singer Robbie Williams - was taken almost word-for-word from a set performed by British comedian Lee Mack in 2007.

And a quick search by brisbanetimes.com.au this morning revealed the origins of the other half of Mr Paris' routine - about his three requirements for dating a woman - had been directly lifted from a routine by US comedian Geoff Keith.

The joke is repeated almost word-for-word.

Mr Paris told the Bulletin he knew of Lee Mack but hadn't ripped off his routine.

''Comedy's a funny thing," he told the newspaper. ''Obviously there are a lot of people doing a lot of things, but a joke's a joke. If it's making people laugh then I'm happy."

Channel Seven this morning would not comment on whether Mr Paris would now be disqualified from the show.

Contestants on Australia's Got Talent, which is now in its fourth year, compete for a prize of $250,000.

It's one of Australia's top-rating television programs, drawing more than 1.8 million viewers on Tuesday night, 500,000 more than the second most-watched show, MasterChef.

While cover versions of songs frequently appear, Fedele Crisci, of Brisbane's Sit Down Comedy Club, said repeating another comedian's routine was nothing like a singer singing someone else's song.

''Stand-up is a very different kettle of fish,'' he said. ''[Copying jokes] is very much frowned upon. People have their routines and people in the industry know whose routines are whose.