T-Pain Talks 'Masked Singer' Win, Auto-Tune and Soulja Boy's G.O.A.T. Status

[[tmz:video id="1_ftnw3ro6"]] T-Pain's feeling validated after taking home the crown on "The Masked Singer," but he's not declaring himself the G.O.A.T. because he's doubling down on Soulja Boy holding that title. Umm ... okay. We got the rapper leaving…