Pop Stars' Tribute To Diana

LONDON, July 1 (Reuters) An international lineup of pop stars paid tribute to Princess Diana today at a marathon memorial concert watched by her sons William and Harry and a crowd of 60,000 at London's Wembley Stadium.

Elton John, friend of the princess who sang at her funeral, opened with ''Your Song'' in front of giant photographs of Diana taken by Mario Testino that were beamed on to the stage backdrop, and closed proceedings more than six hours later.