The Spice Girls lit up the charts when they released their debut single "Wannabe" on January 7, 1997 (or July 8, 1996 if you're in the U.K.).
And we haven't stopped obsessing over them since.
Well, it's been almost 21 years since they stepped on the scene and what better way to celebrate than with a sing-a-long, right?
For your viewing pleasure, W magazine brought together a bunch of celebrities to sing "Wannabe" and it's hilarious.
Some of them even revealed their favorite members from the group.