Ariana Grande sat down with James Corden for the latest installment of Carpool Karaoke and debunks the rumor that she's carried everywhere she goes, reveals her predictable Starbucks order, proves she could fool you into thinking Celine Dion is in the same room, and sings Broadway show tunes (Little Shop of Horrors), a few of her classic hits and new songs from her upcoming album Sweetener (out tomorrow).
