Krishna and Trishna, the twins once joined at the head, have enjoyed a special meeting at Rod Laver Arena with The Wiggles.

This is not the first time the twins have met The Wiggles, with a meeting three years ago after their life-saving surgery.

But this time there was dancing and the twins set themselves the seemingly impossible task of waking up Jeff.

The twins, originally from Bangladesh, underwent a marathon 32-hour operation at a Melbourne hospital in 2009 to separate them.