The girl band regaled the audiences by singing two hits from their whirlwind two-album career in the late 1990s and early 2000s, reported The Telegraph online.
Victoria Beckham, Emma Bunton, Geri Halliwell, Melanie Chisholm and Melanie Brown -- aka Posh Spice, Baby Spice, Ginger Spice, Sporty Spice and Scary Spice -- sang "Wannabe" and "Spice Up Your Life" riding around the Olympic Stadium atop black London taxi cabs.
The famous group performed together on Sunday night after four years.
Victoria tweeted a photo of the "Girl Power" group posing together with a teaser, "Tell us: What did you think of the Spice Girls' performance?"