If there's one person who is seemingly immune to the ageing process above all others, it's Madonna.

Now the 53-year-old singer and film director has revealed the secret behind her ever-youthful allure - and it's all down her string of high-profile relationships, apparently.

Speaking at the London premiere of her latest movie, Wallis Simpson biopic W.E., Madonna said, "What's my secret? Love.

"I don't know. I don't have a secret," she continued, in an interview with BANG Showbiz. "The most important thing is being happy."

Madonna is currently dating 24-year-old dancer Brahim Zaibat (pictured above). She divorced her director husband Guy Ritchie in 2008 after an eight-year marriage. She has since been in a relationship with Brazilian supermodel Jesus Luz but split from him in early 2010.

The star, who wore a Gaultier dress and Van Clee and Arpel diamonds for the premiere last night (11 January), also revealed she was against the idea of producing a musical of her own life.

"Would I consider making a musical about my life? Oh God, no. I would sanction one though, why not, yeah. I mean aren't all the records and everything I've done over the years are kind of like the musical of my life anyway."

A host of other famous names attended the premiere, including the film's stars Andrea Riseborough, James D'arcy and Abbie Cornish, plus designer Matthew Williamson.

Click here to see Madonna's movie highlights.

Madonna: love is secret to looking young