1.
The time when she posed with a pre–No Strings Attached NSYNC — basically when they were still second bananas to the Backstreet Boys .
2.
The time she performed in overalls — not just any overalls, but Tommy Hilfiger overalls.
3.
The time she posed alongside a "Livin' la Vida Loca"–era Ricky Martin and his GLORIOUS golden frosted tips.
5.
The time she went on a shopping spree at the Magic Kingdom while rocking an oh-so-late-'90s outfit: a bucket hat and flared cargo pants.
6.
The time she released bubble gum shaped like a portable CD player.
7.
The time she performed on Nickelodeon's The Big Help and her backup dancers looked like they were all wearing matching Old Navy performance vests.
8.
The time she graced the cover of the MOST important magazine of the late '90s and early '00s, Teen People .
9.
The time she graced Teen People again, alongside fellow pop stars Nick Carter and Monica.
10.
When she took time to pose with the then-daddy of the pop music scene, TRL 's Carson Daly.
11.
The time she graced TRL with her presence and sent hundreds of kids in Times Square into a screaming frenzy.
12.
The time she rocked faux-leather snake print flared pants in a color of snakeskin that does not exist in nature.
13.
The time she posed with Sugar Ray's Mark McGrath and was probably wondering what happened to his epic frosted tips.
14.
The time she graciously shared the stage with the girl who sang "Genie in a Bottle."
15.
The time she posed with 98 Degrees, who for some reason were dressed like they were dancers at a combat-themed strip show.
16.
The time she hung out with Sabrina the Teenage Witch herself, Melissa Joan Hart, at a Tommy Hilfiger event.
17.
The time she sported this scrunchie on 'roids.
19.
And finally, when she and Justin showed up to the AMAs in these iconic denim outfits — which sums up the era perfectly.
It's Britney Day, bitch. In honor of the legendary queen of pop's 35th birthday, BuzzFeed is celebrating with all things Britney Jean Spears. Check out more content on this legendary ICON here and buy Glory on iTunes!
