Selome Hailu / Variety: Sabrina Carpenter's Wild Year of 'Man's Best Friend,' Taylor Swift and Growing Up: 'It's Not My Fault I Got a Job When I Was 12 and You Won't Let Me Evolve' - It's Halloween night at Madison Square Garden, and a group of 20-somethings are deep into a sacred ritual: gabbing in the bathroom mirror with your girlfriends.