Myleene the mermaid breathes easily again after 'exhausting' stunt dive for American TV

Myleene Klass has consistently reinvented herself since winning Popstars to land a place in Hear'Say back in 2001.

The 30-year-old has a CV that boasts singer, classical musician, actress, model and radio and television presenter.

And now the mother-of-one has added yet another string to her bow by spending a whole day in a water tank to see how underwater scenes are filmed.

Real-life mermaid: Myleene Klass learned how underwater scenes are filmed

As part of her monthly CNN film programme The Screening Room, Klass emerged with a few minutes of film of her swimming in a white dress without an oxygen mask.

During her day at Pinewood studios, she was trained and watched over by a stunt team that included a driving instructor who has worked with Angelina Jolie.

Klass said: 'I found the stunt a lot more exhausting and physical than I expected it to be.

'I was wearing three weight belts to keep me on the sea bed and I had to keep equalising, yet try and look graceful.

Solitude: Myleene spent a whole day shooting the underwater scenes

My dress kept floating up over my head, my hair kept getting in my mouth and my eyes went red in the water. Being underwater was emotionally really liberating though.

'The only scary bit was when I thought the diving instructor was to the left of me, but he was to the right. I swam around looking for him but by the time I got to him I had no air left, it was a bit freaky.

'When I got outside, I looked like a giant prune.'

Water babe: Myleene still manages to look effortlessly beautiful during her swim