Britney Spears' Favorite Songs

It's official: Britney Spears is bringing her southern drawl to the next season of The X Factor. While we're still not sure what, exactly, the pop superstar will bring to the judging table (we haven't really seen her speak without a script for, oh, six years), we're certainly excited to see her interacting with professional Rude Dude Simon Cowell and her bubbly pop successor Demi Lovato.
But what's it going to take to impress Ms. Spears?
A quick look at Britney's official Spotify playlists reveals ...