If you've ever asked yourself "what happens when the week's two biggest entertainment stories collide in perfect synchrony?" we have an answer: this. Dakota Johnson, leading lady in the hideously under-exposed Fifty Shades Of Grey film (you might have heard of it?!), attended the equally well-hyped SNL 40-year anniversary episode (read about the best parts here) this weekend, in an embellished — and yes, shaded! — gray mini dress by Sonia Rykiel that brought the '70s vibes home (kudos to Johnson's stylist, Kate Young). We're into the nods to disco, the shift shape and the sparkles going on… and we're pretty sure you will be, too.