KATY PERRY'S PROMO FOR SNL!! AND ROBYN IS MUSICAL GUEST

WOOHOO!! Katy Perry is hosting, but who knew she wasn't the musical guest. ROBYN IS!!! OMG!!! Watch the funny little promos below with Keenan Thompson. Robyn has opened for Katy on several stops of her California Dreams Tour, so it makes sense. Can't wait to see what Robyn sings!!!!!