McCartney says he'll perform in London

Paul McCartney performing in London Olympics Opening Ceremony; he is former Beatles lead singer.

Paul McCartney has confirmed an Olympic-sized rumor, saying he'll be the closing act at the London 2012 opening ceremony.

Earlier this year the former Beatle disclosed that he was in talks to play a role in the celebrations.

On Monday, he confirmed: ''I've been booked.''

He told BBC radio station 5 Live that he would be ''closing the opening'' of the games.

The lineup for the ceremony, overseen by ''Slumdog Millionaire'' director Danny Boyle and themed ''Isles of Wonder,'' is a closely guarded secret, but many had suspected McCartney would be involved.

The Olympic Games take place July 27 to Aug. 12.