An off-duty nurse, a member of the Wiggles' staff and their drummer and have been hailed for saving the life of Greg Pace after he suffered cardiac arrest during a fundraising concert.
The original yellow Wiggle was on Saturday recovering in Westmead Hospital after undergoing surgery to have a stent inserted into his heart.
He was surrounded by friends and family, and a picture posted to social media showed a smiling Mr Pace giving a thumbs up.
He was in a serious but stable condition and expected to be in hospital for some time.
The band confirmed that a planned second show would go ahead at Castle Hill RSL on Saturday night, just 24 hours after the dramatic incident.
The 48-year-old fell to the ground as he walked off stage and had to be revived.
The group's drummer Steve Pace, Kimmy Antonelli, who works on the group's staff, and off-duty nurse Grace Jones, who was in the audience, were credited with saving his life after performing CPR and using a defibrillator before ambulance officers arrived.
"I didn't go to a Wiggle concert expecting to do that," Ms Jones said.
"It's a bit surreal. I do things like that everyday at work, I didn't expect to do that without equipment and everything like that."
Mr Page complained of feeling unwell after appearing on-stage for an hour before collapsing and it was later revealed he suffered a heart blockage.
Paramedic Brian Parcell, who worked on Mr Page as he was taken to hospital, said he would not be alive if it weren't for the efforts of those who performed CPR.
"We found Greg was unconscious at that point but he had cardiac output, his heart was actually beating," Mr Parcell said.
"It's only through the efforts of the bystanders before we arrived that he's alive today.
"It's actually an extraordinary story of survival. The message is that the more people who learn CPR and use defribillators, the more lives we're going to save."
The original Wiggles line-up of Page and Anthony Field, Murray Cook and Jeff Fatt were performing the first of two planned fundraisers for the bushfire relief effort.
"There was no pulse, no breathing," blue Wiggle Field said.
"Luckily we have our wonderful drummer Steve Pace and Kimmy. They knew CPR, they brought Greg back. There was a nurse in the audience who put the defibrillator on him. They brought him back."
Mr Field said that Mr Pace was talking and he wanted Saturday's show to go on. The group will use the performance to honour their ill bandmate.
Page left the children's band in 2006 due to poor health and returned for a second stint in 2012.
In 2006 he revealed he was suffering from orthostatic intolerance, which caused problems with the function of his heart when standing.
Australian Associated Press