The Wiggles' Murray Cook has spoken about this past weekend's show which saw frontman Greg Page experience cardiac arrest.
The group were performing a charity show for bushfire relief in Sydney on Friday night, with Page collapsing after exiting the stage. He is currently recovering in hospital.
As reported by ABC, Page told The Drum that he "had no idea it was that serious" at the time.
"[Page] walked off and he walked behind me," he said. "I didn't actually see this part of it, but apparently he fell to his knees and when I looked around he was lying on his back with his arms outstretched."
CPR was then performed by the group's drummer and a crew member, with off-duty nurse Grace Jones then assisting with a defibrillator
"Our drummer, Steve Pace, and our staff member, Kim Antonelli, they started the CPR and then the defibrillator turned up and Grace took over there and she's amazing," he said.
"She's only 23 and is quietly-spoken, quite shy — I think she's not enjoying all the attention really — but she was so assured and she knew what she was doing."
Cook has assured that Page is "progressing really well" with his recovery.
After forming in 1991, Page retired from The Wiggles in 2006 after being diagnosed with orthostatic intolerance, which can cause fainting and fatigue.
After a brief return as the Yellow Wiggle, Page again retired in 2012.