Claim: Outkast formed in 1991.
Evidence: Outkast -LRB- stylized as OutKast -RRB- is an American hip hop duo formed in 1991 , in East Point , Atlanta , Georgia , composed of Atlanta-based rappers André `` André 3000 '' Benjamin -LRB- formerly known as Dré -RRB- and Antwan `` Big Boi '' Patton.