'Femme Fatale' Becomes Britney Spears' Sixth Number One Album

Britney Spears is once again officially on top. Brit's latest effort, Femme Fatale made a big splash to debut in first place after its first week on the charts, making this her sixth number one album.

Britney moved 276,000 copies of her new album to bury her valiant second-place competitor, Wiz Khalifa, who sold 197,000 copies of Rolling Papers. While the numbers are impressive, they aren't particularly special for Britney, whose 2008 album Circus sold 508,000 copies in its first week.

Britney Spears In Jackass: 3D': Star Does Porta Potty Bungee

Spears, who is out promoting her new album, "Femme Fatale," appeared on "Jimmy Kimmel Live" on Tuesday night. So did "Jackass" star Johnny Knoxville. The two have history -- dirty history.

Knoxville revealed that Spears filled a scene for their latest movie, "Jackass 3D," and it was quite the crappy affair. Literally. Spears took part in the "Poo Cocktail Supreme," a huge bungee chord flight inside a used porta potty. You can guess what happened.

The scene was cut from the film due to time, but Knoxville had the footage to show Tuesday night. It's not pretty. But pretty hilarious.