Olympics Closing Ceremony 2012 Spoilers: Spice Girls, Adele, One Direction, Rolling Stones, George Michael

The production for Olympics Closing Ceremony is being touted as "the greatest after-party in the world" by the show's music director David Arnold.

The list of musicians scheduled to perform have not been announced yet. Several reports have leaked that Kate Bush, Adele, George Michael, Rollingstones, Pet Shop Boys, The Beatles' Paul McCartney and One Direction as possible acts.

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Tweets from several British music stars have revealed their participation.

British singer George Michael shared his confirmed appearance with his followers on Twitter:

"Hey everyone, how are you. Spending most of the next week rehearsing like crazy for the Olympic closing ceremony....."

"Obviously a bit nervous not having played for nearly a year, but rehearsals sounding great so far!," he tweeted a few days later.

"Oh, and, secret? It's been all over the press for weeks, and I think you alll needed to be put out of your misery!" he added.

Spice Girl Mel B. tweeted: "Can't wait to wear Zuhair Murad clothes this weekend (sic)!!"

She also posted an image of three pairs of shoes with the caption, "Guess which shoe belongs to which spice girl!!!"

She then responded to her followers' replies: "You guys are spot on, mine is black, emma's pink, and geri's gold, you lot are fab (sic)!"

David Arnold, the music director of the Olympic Closing Ceremony, told the London's The Telegraph that there will be 20 popular acts. He described the highly-anticipated production as "beautiful, cheeky, cheesy, camp, silly and thrilling." 

"If the Opening Ceremony was the wedding, then we're the wedding reception," he added.

The Closing Ceremony will provide the traditional aspects performed at every Summer Games: the athletes' march, a speech by Queen Elizabeth 11 and a "handover" of the Olympic Flame to the next city set to host the Olympics in four years. Rio De Janeiro is set to host the 2016 Olympics.

The ceremony's music production is titled "A Symphony of British Music." 

Arnold is working with Kim Gavin, a theatrical and ballet choreographer, for dance segments and designer Es Devlin for set design. Devlin's clients include Rihanna and Lady Gaga for their concerts.

The closing ceremony, featuring more than 4,100 performers, will kick off Sunday at 9pm GMT, 4pm ET at the Olympic Stadium in London. The ceremony will not be televised live in the States and will be tape-delayed on NBC at 7 p.m. ET. The show will last two and a half hours.