During the GRAMMYs last night, Lana Del Rey fans got a special treat: We heard a snippet of her creepy cover of "Once Upon a Dream" in a commercial for Disney's upcoming film Maleficent, starring Angelina Jolie.

In the original animated film, Sleeping Beauty sings the joyful song to a few woodland animals, because all princesses can talk to wildlife. But in the much darker (much more awesome-looking) remake, "Once Upon a Dream" sounds like it might be the evil villain Maleficent's theme song. So who better to make it slow and scary than Lana Del Rey? 

Check out Lana's ominous cover of "Once Upon a Dream" above, and watch the Maleficent trailer, featuring the new song, below.