The term comeback is thrown around often in Spears' career, but "Circus" was certainly a later-years highlight. This polished video gave fans what they wanted to see -- Brit manages to bust a few moves -- while also bringing something different to the table.
9. "Everytime"
The rare Britney ballad is often heartbreaking, and this one comes fully loaded with a couple shots that rank among the most memorable moments for Spears. Her running down the all-white hospital hall, as well as the ending in the bathtub, showed that even when Spears wasn't busting a move she could still create moments worth watching.
8. "Me Against The Music"
At the time when the song dropped, this video -- which featured a dance-off with Madonna -- couldn't be more popular. It features one of Britney's all-time best dance breaks, and the fashion (hats! sexy menswear!) and styling keep it memorable to this day.
7. "I'm A Slave 4 U"
Featuring Spears at her sexiest (and sweatiest), the vid for the hypnotic tune finds the singer grinding and dancing her heart out. With her enviable abs on display, Spears reminded everyone why she was considered the ultimate pop princess.
6. "Womanizer"
We've spoken of comebacks before, and while this one certainly borrows heavily from "Toxic," it was still a treat for fans. When you know what works, why mess with it?
5. "Lucky"
Lucky is certainly different than many of Spears' videos, but it's definitely one worth re-watching. Playing herself as well as an actress, what the video lacks in dance breaks it makes up for with emotion.
4. "(You Drive Me) Crazy"
Sometimes this early-days video is forgotten between "Baby...One More Time" and "Oops!," but that would be a mistake. This is the first time Spears -- donning an iconic green midriff-baring top -- dances her way right into the world's heart.
3. "...Baby One More Time"
Britney burst onto the scene with a high school-set video that instantly made her a star. Like all her best videos, the fashion and sets are distinct high points all on their own, but taken as a whole, Spears' first time out of the gate is a teen dream that instantly showed everyone that she was one to watch.
2. "Oops!...I Did It Again"
If the turn of the century ever needs to be put in a time capsule, the video for Spears' lead single off her sophomore album of the same name needs to be included. It's a frothy pop fever dream, complete with a reference to Titanic, a red leather unitard, and even a jaunt to Mars.
1. "Toxic"
"Toxic" expertly melded all the things people love about her into four minutes of perfection: There was the fashion (bedazzled nude body suit, stewardess outfit, wigs!), a perfectly early-aughts elaborate video concept, unexpected visuals (jumping out of the sky onto a motorcycle), and of course, some dancing to a seriously killer track (for which Spears received her sole Grammy win).