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2012 Olympic Games - Closing Ceremony

LONDON, ENGLAND - AUGUST 12: (L-R) Geri Haliwell, Emma Bunton, Melanie Chisholm, Victoria Beckham and Melanie Brown of the Spice Girls perform during the Closing Ceremony on Day 16 of the London 2012 Olympic Games at Olympic Stadium on August 12, 2012 in London, England. (Photo by Michael Regan/Getty Images)

Spice Girls: Then and now

It's been 16 years since the Spice Girls released their smash hit single "Wannabe" and became a global pop culture phenomenon. Now the best-selling female group of all time, they reunited to perform at the Closing Ceremony of the London 2012 Olympics.