Duo Halloween Costume: Will and Carlton From "The Fresh Prince of Bel-Air" Throw it back to the '90s with your bestie this Halloween and be cousin duo Will and Carlton from "The Fresh Prince of Bel-Air." Doing Carlton's iconic dance is a must. What to wear for Will: Either an oversize windbreaker and some baggy '90s jeans or a white button-up with a red blazer. What to wear for Carlton: Black trousers, a dress shirt, and a classic tennis sweater. Image Source: Everett Collection