Amy Schumer and her Trainwreck co-star Saturday Night Live's Vanessa Bayer took to the roof of 30 Rock to do promos for this week's episode of SNL, which Schumer is hosting. While they try to keep the mood upbeat and breezy, the two spend nearly every take undermining each other and predicting when it'll all come crashing down. By the looks of things, it's gonna be a good show.
