Kylie Minogue can no longer perform her classic song 'Better the Devil You Know'.
The 41-year-old singer admits the track – which reached number two in the UK singles chart in 1990 - is her favourite song in her back catalogue, but when she sings it live now she has to do so in a different key.
She said: "'Better the Devil You Know' was a turning point and an exciting time for me. I was 21, I'd just started dating Michael Hutchence and a different world had opened up.
"That song is ludicrously high, so when I perform it on tour, we take it down a bit. Some of those songs sound simple, but when you tackle them live, they're not easy."
The Australian pop beauty also claims her brush with breast cancer in 2005 has led her to finally accept herself the way she is after over 20 years in the music business.
She told the new UK edition of Elle magazine: "I think I've hit my stride, finally after 20 years. Some things have just clicked. It's ridiculous that it's taken that long.
"Maybe it's to do with being on tour when I fell ill, but I didn't know I was ill. The last tour in North America was purely for my fans. I felt like I had nothing to lose, so this immense freedom came with that."