THE OLYMPICS CLOSING CEREMONY

Olympics to end with 'best ever after party'

Adele, The Who, Pink Floyd rumored to be among performers

LONDON -- With Olympic fever still rife in the U.K. as the 30th Olympiad in London draws to a close, anticipation is turning to the closing ceremony on Sunday.

London 2012 officials are trying to keep the details of the ceremony secret, beyond the known traditional elements, including the march of the athletes, and the handover to the next host city, Rio.

Music director David Arnold, who has worked with artistic director Kim Gavin and designer Es Devlin on the ceremony, told Blighty's Daily Telegraph, "It is a celebration of Britishness in terms of the arts: design, fashion, fine art, poetry and playwriting, all sitting fairly and squarely on popular music."

Arnold said he had been working on the project for two years, and has had to turn down all other work for over a year, including scoring new James Bond movie "Skyfall."

"To me this should be the greatest after-party in the world," said Arnold. "Hopefully it will wrap up the spirit of what these Games have been, which is slightly anarchic, slightly mischievous, funny, heart-warming, emotional, inspiring and uniquely British."

Twenty or more major artists are expected to take part. George Michael recently tweeted that he would be involved, while Muse revealed their inclusion to NME magazine. Singer-songwriter Ed Sheeran claimed he will perform "Wish You Were Here" with members of Pink Floyd, although the band have denied it.

Other acts rumored to be performing are Ray Davies of the Kinks, Paul McCartney, the Spice Girls, Adele, Liam Gallagher, Take That, the Who, Queen, Paul Weller, One Direction, Elton John, the Rolling Stones and Kate Bush.

The worldwide broadcast starts at 1 p.m. PST and will feature more than 4,100 performers, including 3,500 adult volunteers and 380 school-children from the six East London host boroughs.