They regaled the audiences by singing two hits from their whirlwind two-album career in the late 1990s and early 2000s.

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, reports CBS News.

The famous group performed together Sunday night after four years, though earlier this year the quintet had talked about their musical "Viva Forever" -- based on their songs -- that is to be launched this fall in London.