Professionally, when I did the Olympic games and sang for my country in Australia. It was a big moment, Sydney in 2000. It was just a brilliant moment in my life.
In June 1992, I discovered a lump in my breast. A subsequent mammogram, ultrasound and a needle biopsy proved negative. But my instinct said it still didn't feel right, so I had a lumpectomy. I then got the news that it was cancer.
I've always been aware of my health - when you are having to go on stage and perform, you need to be feeling good - but when I was diagnosed with a life-threatening illness, I became really, really conscious of my health.
The only weights I lift are my dogs.