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The rumors about the Spice Girls performing at the Olympics closing ceremony have been confirmed! They were spotted rehearsing their number in London. (You can check out pics here, here, and here.) Of course they won't be the only ones performing on Sunday:

In addition to the Spice Girls, One Direction, The Who, George Michael, Muse, Russell Brand, Jessie J and Queen are expected to take part in the closing ceremony.

It's going to be huge!