John Cena Looks Unrecognizable After Making This Wild Transformation For Prank (EXCLUSIVE)

John Cena, is that you?! The WWE star is guest starring on Nickelodeon’s upcoming series, “The Substitute” and Access Hollywood has your first look in this sneak peek clip! “The Substitute” premieres Friday, Oct. 4 at 7:00PM ET/PT on Nickelodeon.