Let's go back in time. To about 15 years ago. When shiny pink kneepads counted as a fashion statement. The turn of the century marked a golden era of pop music — were you more of a Britney or a Christina? [1] Whether you dressed as a Catholic school girl or a genie in a bottle, let's relive the magic. We now present the moments you could never forget.

When Britney Sang Her Heart Out Into a Headset Mic

Again . . .

And Again . . .

And Again . . .

When Gwen Stefani Showed Off Various Hairstyles

Pink!

Knots!

Blue With Knots!

When Everyone Made Questionable Makeup Choices

And Stick-Straight Hair Was a Must

But Crimps Also Worked

When Beyoncé Wore Camo

And Christina Wore Capris

When There Wasn't a Covered Midriff In Sight

Nope Not Here

Or Here

Or Here

Or Here

Or Here

When Britney Posed Against a Pole

And Christina Posed With Kid Rock

When Jessica Wore Denim on Denim

And Destiny's Child Wore Whatever This Is