Listen to Beyonce's New Version of "Crazy in Love"

...from the 50 Shades of Grey trailer.

Looks like Beyonce's gone for the sexiest possible occasion to re-up her Jay Z-featuring 2003 hit "Crazy in Love" - she's recorded a new version that you can hear a snippet of in, yes, the trailer for the film version of 50 Shades of Gray, the S&M-heavy series of novels that have titillated everyone and their mom (yes, probably your mom) in recent years. The new version is, unsurprisingly, even more sexy than the original, with Bey turning up her huskiest croon for the occasion, over swooning, massive strings. Check out the trailer below - the clip of "Crazy in Love" starts around 1:05.