Leona to perform at Mandela birthday gig

Leona Lewis, Queen and the Sugababes are to perform at a concert to mark Nelson Mandela's 90th birthday, organisers have confirmed.

The event, which takes place in London's Hyde Park on June 27, will also feature performances from Annie Lennox, Razorlight, Shirley Bassey, Simple Minds and Jamelia.

Mandela will fly to London next month to attend the event, which will raise funds for his AIDS charity 46664.

According to the organisers, "several major artists [are] keeping silent about their involvement in order to take both Mr. Mandela and the audience by surprise".

Tickets for the event go on sale on Friday from the Live Nation website.