Our tribute to mother, by William and Harry

Princes William and Harry today revealed their plans for a moving, double tribute to their mother marking the 10th anniversary of her death.

Speaking about their plans for the first time to the Evening Standard the princes officially announced two major events next year to celebrate Princess Diana's life.

Diana inquest... • Last Diana conspiracy theory just days before report

• Diana death report to be published on Thursday

• Diana was bugged by secret service in U.S.

• Met protection 'would have prevented Diana's death'

• Diana coroner stood down because he is key witness

• Al Fayed wins bid to have Diana inquest held in public

• Diana death driver 'not entirely to blame' for fatal crash

They have given the go-ahead for a memorial service on 31 August to be held in London. It will be preceded by a tribute concert on her birthday involving such stars as Sir Elton John.

Prince William said today: "We both wanted to put our stamp on it. We want it to represent exactly what our mother would have wanted; how she was and all that sort of thing. So therefore the church service alone isn't enough.

"We wanted to have this big concert with, you know, full of energy, full of the sort of fun and happiness which I know she would have wanted.

"It's got to be the best birthday present she ever had. The main purpose is to celebrate and to have fun and to remember her in a fun way." Prince William added: "We've decided that it's going to be called Concert for Diana, because obviously the evening is going to be purely about her. It's to remember her and to celebrate her life."

Prince Harry said: "The service is going to include both sides of the family, our mother's side and our father's side - everyone getting together. It should be a good occasion and lots of loud hymns, I Vow To Thee My Country, all the good ones."

The Concert for Diana will be held at Wembley Stadium and hosted by the princes. Artists already booked for the 1 July concert include Sir Elton , Duran Duran, Bryan Ferry, Pharrell Williams, The English National Ballet, Joss Stone and Andrew Lloyd Webber, who will stage a medley of songs from some of his West End shows. It will raise money for Centrepoint, a homeless charity of which William is patron, and Sentebale, an AIDS charity based in Lesotho, set up by Harry in memory of his mother. Prince William and Prince Harry have invited the Queen, the Duke of Edinburgh, the Prince of Wales and the Duchess of Cornwall, as well as Lady Sarah McCorquodale, Lady Jane Fellowes and Earl Spencer.

Tickets, priced £45, will be made available from 9am tomorrow via the website www.concertfordiana.com.