Due to some biased behavior during the opening of this game, I'm gonna speed the process a bit and do this twice a week  So, with that being said: Welcome to the first edition of, GGD's FAVORITE DEBUT SINGLE, where we'll be deciding which is, in your opinion the best debut single from our MPGs. We're now facing the Smile chanteuse Katy Perry against the mathematician Ariana Grande:       Past rounds: