Like the woman it will honour, it is a line-up with wide appeal.

Performers ranging from a foul-mouthed rapper to the English National Ballet, via Lily Allen and Andrew Lloyd Webber, will ensure the five-hour charity concert to mark the 10th anniversary of the Princess of Wales's death smashes through cultural boundaries.

On the bill: Lily Allen is confirmed as an act for the Diana gig. The event, at Wembley Stadium had been criticised for its line-up of 'has-been' acts with older performers such as Elton John

Yesterday, Clarence House announced eight new acts had signed up to perform at Wembley Stadium on July 1, which would have been Diana's birthday.

The likes of 21-year-old Miss Allen, Kanye West, Natasha Bedingfield and James Morrison bring an injection of youth to a bill which has been criticised in some circles as full of 'has-beens'.

But rock wrinklies Rod Stewart and Status Quo were also added to names already announced, which include Sir Elton John, Duran Duran and Bryan Ferry.

Rapper Pharrell Williams, who is renowned for his explicit lyrics and is a favourite of William and Harry, has already been listed to appear.

Ten thousand more tickets will go on sale this morning at a cost of ￡45 each. The first batch sold out last year within 17 minutes.

Concert for Diana was devised by her sons as a way of celebrating the life of their mother.

"We wanted to have this big concert, full of energy, full of the sort of fun and happiness which I know she would have wanted," William said at the event's launch.

Yesterday, his aide Geoffrey Matthews reiterated that the concert was very much William and Harry's idea.

"They wanted to find a way to capture her remarkable joie de vivre," he said.

Clarence House confirmed that Harry has applied for leave from his Army posting in Iraq to return for the concert and will make a special guest appearance with his brother on stage.

"They want us to keep what they are going to say a surprise," Mr Matthews said.