Aussie showbusiness legend Kerri-Anne Kennerley shocked viewers as she fell almost 5 metres from a trapeze during her performance in the musical Pippin.

She plunged to the ground during Wednesday night's performance but managed to finish her song before she was rushed to the hospital.

Kennerley has since confirmed that she broke her collarbone and chipped her ankle bone from the terrifying fall.

"Good riddance to 2020. Pippin has genuinely been one of the great experiences of my life exceeding all my expectations," Kennerley confirmed in an official statement.

"What happened is just a random misstep in the trapeze and circus world. I've always felt safe in their hands but accidents just happen. I was trained well and loved getting stronger and the routine smoother."

"I'm devastated that I can't finish the run. It was just so much fun. I broke my collar bone quite severely and have a slight chip of my ankle bone," she revealed.

The showbusiness legend played Grandma Berthe in the stage musical and shared how intense getting ready for the role was.

"In my big number, I have to get on a trapeze and go up 15ft," she explained to The Senior.

"I'm helped by a very strapping, hunky trapeze artist and we do several movements including one called The Bird, and one where I have to hang by my feet."

"It's a big learning curve and I realise how active and tough this is going to be, but every day there is some improvement."