Beyoncé Sings New Version of 'Crazy In Love' in 'Fifty Shades of Grey' Trailer
Calling all Naughty Girls: The first official trailer for sexy book-to-film phenomenon "Fifty Shades of Grey" is here. More importantly? New, sexy Beyoncé!

Okay, she doesn't actually appear in the film (Yet! That we know of!), but Bey did record a brand-new version of "Crazy in Love" for the movie. And after teasing it on her Instagram earlier this week, fans can now hear quite a bit of the tune in the trailer.

Is Beyonce Partnering With 'Fifty Shades of Grey' A Good Idea?

Did you think her 2003 duet with Jay Z couldn't get any hotter? Trick question. Beyonce can always get hotter, and this time around solo Queen Bey released a slowed-down, super sultry version (complete with mandatory heavy breathing!) of one of her most iconic hits.

Here's hoping the Beyoncé/"Fifty Shades" crossovers continue -- Anastasia could tell Christian Grey to "roll up the partition, please," or that she needs to put on her "Freakum Dress," or that she's getting "Drunk in Love." Really, the options for "Fifty Shades of Bey" are endless.