Ladies, gentlemen and closeted Britney Spears fans everywhere: The full versions of the 'Glee' Britney Spears covers have leaked, and they're amazing.

While we got a taste of the 'Glee'-ification of the tunes yesterday, it was impossible to tell that they'd be this fun and energetic. Since Britney's songs are inherently poppy, the cheerful 'Glee' harmonies don't seem out of place (like in the weird Kidz Bop-esque cover of "Empire State of Mind" last week). In fact, they enhance the tracks and make us remember why we loved Britney in the first place.

Remember way back before the shaved head? Like, way before -- when she was still kinda brunette? These 1999-2003 Britney songs are just as catchy now as they were then, with the added nostalgia factor making them even more fun. Case in point: I don't remember ever liking "I'm a Slave 4 U" as much when it came out as I did when I listened to the 'Glee' version just now.

The 'Glee' version of "I'm a Slave 4 U" is embedded below. Listen 'til it's yanked, then head to GleetheMusic.com for all five "Britney/Brittany" tracks.


Which song do you like the best?