Fifty Shades Of Grey fans have been whipped into a frenzy this morning with the release of the first teaser trailer for the movie.

And there's even more excitement about the source of the promo - Beyoncé's Instagram account.

The R&B star made no comment on the super-short video, simply writing: "#fiftyshades"

But with no previously publicised connection to the movie, fans have now begun speculating that she could be featured on the soundtrack.

The vid was quickly reposted by Rita Ora - who is of course in the film.

The teaser itself begins with Christian Grey gazing out of an office window, and also features a male hand drawing a skirt up under a desk and a key opening a hotel room door.

It also features the words: "This Thursday the worldwide phenomenon comes to life."

Watch this space.