Beyonce does a little more than just moan the melody of 'Crazy in Love' for the 'Fifty Shades of Grey' trailer, which debuted today.

The trailer shows scenes from one of the most buzzed about movies arriving in 2015. From the first meeting between Christian Grey and Anastacia Steele to the time they enter his hidden S&M lair, it's not for the prude. So what's Bey's role in all this?

Well, her dance-worthy, booty shaking duet with husband Jay Z gets the remix treatment. 'Crazy in Love' has been slowed down to a strong mechanical beat, like the rhythm Mr. Grey would take when whipping Anastacia in that sex room, plus the song is filled with dark, orchestral melodies.

The effort sounds a bit more alt rock than the original R&B version we're familiar with. Even Beyonce's vocals have taken a different tone -- she sounds more like Florence the Machine's Florence Welch.

If this new version were to be made into a video, it would likely look like an even darker version of Aaliyah's visual for 'Are You That Somebody?' While we get a bit more than the breathy sounds featured in the previous teaser, Bey's remix isn't played in its entirety. However, at the end of the trailer, the film hints that audiences will get to hear the whole song. So we're betting it'll be on the movie's soundtrack.

Get crazy in the trailer above.