Britney Spears' "Femme Fatale" doesn't come out until March 29 -- but full versions of the songs are dropping online today ... and they're good!

Both "Inside Out" and "I Wanna Go" found their way around the Internet this morning and we've got them for you to listen to right now!

First up: "I Wanna Go," which was produced by Max Martin and Shellback -- who previously collaborated together for Britney's "If U Seek Amy."

Up next: "Inside Out," which was produced by Dr. Luke, Max Martin and Billboard.

Sound off below on the songs -- and pre-order the album now at iTunes!

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