The '50 Shades of Grey' trailer is alternately steamy and scary, but late-night host Jimmy Fallon wasn't content to show it to his house band, the one and only Roots, as is. Nope, that thing needed to be modified just a touch, to really make sure that the band was paying the proper attention to their trailer-watching assignment. So the 'Tonight Show' host did what anyone would do -- he inserted a scary scream face into the middle of the trailer. Obvious, right?

Fallon really didn't need to add that face, though, because it sure seems that The Roots are really into what they're seeing anywhere, and we'd gladly just watch them observe the trailer without any added scares. Those screams? They're just icing on the cake.

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