Wannabe, the girls' first single, was released in the UK on 8 July, 1996, on cassette, 12" vinyl and CD.
It's been 18 years since Mel C did this backflip on a table.
Since Mel B and Emma terrorised these old men for no reason at all.
Since Geri and Emma danced with this glamorous old woman.
And it's 18 years since saying "zig-a-zig-ahh" while doing a sassy dance became a thing.
The Spice Girls themselves have been informing people about this.
But people are find it hard to believe.
Lots of people pointed out that people going to university this year probably weren't alive in 1996.
And now you're freaked out.