Britney Spears Deluxe Album Bonus Tracks Leaked

With only 10 days before the release of Britney Spears' 'Femme Fatale,' snippets from the four deluxe edition bonus tracks are now finding their way online.

'Up N' Down' is an electropop jam produced by Max Martin, Shellback and Oligee in which Spears teases, "I know you want me like kids want candy / So keep watching me go down and up and down and up and down."

On the Stargate track 'Selfish,' Spears sings forcefully, "I'mma show you tonight / That I'm a girl and you're a boy / And tonight you gon' be my, be my man."

The two Rodney Jerkins-produced bonus tracks appear to deviate a bit from the dance-pop formula of 'Femme Fatale.' 'Don't Keep Me Waiting' has a rock edge with guitars, heavy drums and a rap-sing vocal delivery, while the snippet of 'He About to Lose Me' presents a more relaxed pop vibe with Brit's unaltered vocals at the forefront.

'Femme Fatale' finally drops on March 29. Check out the full track listing for the standard and deluxe versions.

Listen to 'Up N' Down' Teaser