The Spice Girls are reforming to make a comeback at the London Olympics.

According to a new report, the Wannabe hitmakers are "95%" confirmed to add some spice to the closing ceremony.

The singers, who have not performed together since 2008, will join George Michael, The Who, Emeli Sande, Take That and Jessie J for the climax on 12 August.

The Mirror reports Geri Halliwell will even don a Union Jack dress for the event.

A source said: "The girls were approached for the Games two years ago. It's always been on the cards. But Victoria's hectic work schedule, and the fact she and Mel B live in the US have always been problematic until now.

"Victoria is in London until the end of the Games and David's exclusion from the football team means she has time to reunite with the Spice Girls. Talks are back in full swing and the balance of power rests with Mel C. Everyone is hopeful she will agree to perform."

During her recent trip to Ireland, the fashion designer admitted she would love to appear with her bandmates again.

She told RTE's John Murray Show: "I'm so respectful of my past and I love the other girls. We have some fantastic fans. Who knows, maybe some day we'll do something else with the Spice Girls. I would love nothing more.

"I don't know about a comeback tour but I loved being back with the girls. There was a lot of fun, we did so much together and we'll see. If they're up for something then I certainly am."

In another throwback to the '90s, Liam Gallagher has also been tipped to sing Oasis hit Wonderwall at the Games' closing.

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  • (L to R) Melanie Brown aka Mel B, Melanie Chisholm aka Mel C, Jennifer Saunders, Geri Halliwell, Judy Craymer, Emma Bunton and Victoria Beckham pose at the press launch of 'Viva Forever', a new musical based on the music of The Spice Girls, at the St Pancras Renaissance Hotel on June 26, 2012 in London, England. (Photo by Dave M. Benett/Getty Images)

  • (L to R) Melanie Brown aka Mel B, Melanie Chisholm aka Mel C, Jennifer Saunders, Geri Halliwell, Judy Craymer, Emma Bunton and Victoria Beckham pose at the press launch of 'Viva Forever', a new musical based on the music of The Spice Girls, at the St Pancras Renaissance Hotel on June 26, 2012 in London, England. (Photo by Dave M. Benett/Getty Images)

  • (L to R) Melanie Brown aka Mel B, Melanie Chisholm aka Mel C, Geri Halliwell, Emma Bunton and Victoria Beckham pose at the press launch of 'Viva Forever', a new musical based on the music of The Spice Girls, at the St Pancras Renaissance Hotel on June 26, 2012 in London, England. (Photo by Dave M. Benett/Getty Images)

  • (L to R) Melanie Brown aka Mel B, Melanie Chisholm aka Mel C, Geri Halliwell, Emma Bunton and Victoria Beckham pose at the press launch of 'Viva Forever', a new musical based on the music of The Spice Girls, at the St Pancras Renaissance Hotel on June 26, 2012 in London, England. (Photo by Dave M. Benett/Getty Images)

  • Viva Forever musical launch

    Judy Craymer (left) and Jennifer Saunders (right) during a photocall at the St Pancras Renaissance Hotel in London to launch Viva Forever, a musical featuring songs from the Spice Girls, which will opens at the Piccadilly Theatre on the 11th December 2012.

  • Viva Forever musical launch

    Jennifer Saunders (top left) and Judy Craymer (top right) pose with the Spice Girls (from left to right) Melanie Brown (Mel B), Melanie Chisholm (Mel C), Geri Halliwell, Emma Bunton and Victoria Beckham during a photocall at the St Pancras Renaissance Hotel in London to launch Viva Forever, a musical featuring songs from the Spice Girls, which will opens at the Piccadilly Theatre on the 11th December 2012.

  • Viva Forever musical launch

    Jennifer Saunders (third right) and Judy Craymer (third left) pose with the Spice Girls (from left to right) Melanie Brown (Mel B), Melanie Chisholm (Mel C), Geri Halliwell, Emma Bunton and Victoria Beckham during a photocall at the St Pancras Renaissance Hotel in London to launch Viva Forever, a musical featuring songs from the Spice Girls, which will opens at the Piccadilly Theatre on the 11th December 2012.

  • Viva Forever musical launch

    The Spice Girls (from left to right) Melanie Brown (Mel B), Melanie Chisholm (Mel C), Geri Halliwell, Emma Bunton and Victoria Beckham during a photocall at the St Pancras Renaissance Hotel in London to launch Viva Forever, a musical featuring songs from the Spice Girls, which will opens at the Piccadilly Theatre on the 11th December 2012.

  • Viva Forever musical launch

    Victoria Beckham during a photocall at the St Pancras Renaissance Hotel in London to launch Viva Forever, a musical featuring songs from the Spice Girls, which will opens at the Piccadilly Theatre on the 11th December 2012.

  • Viva Forever musical launch

    Melanie Brown (Mel B) during a photocall at the St Pancras Renaissance Hotel in London to launch Viva Forever, a musical featuring songs from the Spice Girls, which will opens at the Piccadilly Theatre on the 11th December 2012.

  • Viva Forever musical launch

    Melanie Chisholm (Mel C) during a photocall at the St Pancras Renaissance Hotel in London to launch Viva Forever, a musical featuring songs from the Spice Girls, which will opens at the Piccadilly Theatre on the 11th December 2012.

  • Viva Forever musical launch

    Emma Bunton during a photocall at the St Pancras Renaissance Hotel in London to launch Viva Forever, a musical featuring songs from the Spice Girls, which will opens at the Piccadilly Theatre on the 11th December 2012.

  • Viva Forever musical launch

    Geri Halliwell during a photocall at the St Pancras Renaissance Hotel in London to launch Viva Forever, a musical featuring songs from the Spice Girls, which will opens at the Piccadilly Theatre on the 11th December 2012.