Frontman Bruce Dickinson and guitarists Adrian Smith and Janick Gers were on hand to receive the honor also recognizes the group as one of the most globally successful and influential rock bands of all time, with more than 90 million albums sold worldwide.

"Nordoff Robbins is an exceptional charity and their dedication to changing people's lives through music therapy is something we all very much support," said the group. "We're extremely proud to receive the O2 Silver Clef Award and be part of the 40th anniversary event celebrating this wonderful achievement."

Last year's honoree was Jimmy Page; past winners include The Rolling Stones, David Bowie, Eric Clapton, Pink Floyd, Genesis and Queen.