The stars duet at a star-studded fund-raising bash in Los Angeles...

STING was joined onstage by actor ROBERT DOWNEY JR for a set to raise funds for the CEDAR-SINAI MEDICAL CENTER in LOS ANGELES last night (March 27).

The pair duetted in front of a celebrity audience that included Michael Douglas and Catherine Zeta Jones, who were guests of honour at the concert, held at Beverly Hills’ posh Regent Beverly Wilshire hotel, which featured in ‘Pretty Woman’.

Sting, who headlined the bash, sang a handful of 40s songs, before telling the audience: “I was in a little bit of legal bother last week. My lawyer got me out of it. I asked what I owed and he said, ‘If you let me sing with you tonight, I won’t charge you.'” He then introduced Downey, who plays a lawyer in TV series ‘Ally McBeal’, who joked: “If I was a lawyer, I’d be my own best client.”

Sting then asked Downey what he wanted to sing, to which he replied: “The one everyone knows?” They then launched into Police hit ‘Every Breath You Take’ with Downey gaining in confidence as the performance went along, and they finished to a standing ovation. For an encore they did a cover of The Beatles‘ ‘Penny Lane’ which had the crowd cheering.

During the evening, soul singer Natalie Cole presented the Nat King Cole Award to Brad Martin, the CEO of famous shop Saks, who underwrote the event.

The audience included Steven Spielberg and Kate Capshaw, who were honorary co-chairs of the benefit, Sylvester Stallone, Kirk Douglas, Sting‘s wife Trudie Styler and ‘LA Law’ star Harry Hamlin.