Dr. Luke teases Britney's "How I Roll."

The world was waiting to see if there would be another teaser

of a track from Britney Spears' Femme Fatale, and they got it!

Late last night, executive producer Dr. Luke posted

a teaser of electronic-filled "How I Roll" to his SoundCloud account.

But, unlike the previous leaks

(just so you know, "'Til The World Ends" is a FAKE),

I'm not completely hooked yet. It's a little extreme sounding to me.

I know her team was talking about Femme Fatale being "gritty,"

but not THIS crazed! I don't know; it might take me a few more listens.

If you haven't heard it yet, go ahead and listen up HERE.