Ant & Decs Undercover Prank on Jamie Oliver

Subscribe for more! Looks like Jamies day isnt going to be quite so pukka after all. Watch as Ant and Dec go undercover, totally ruining .
Subscribe for more! Ant & Dec are undercover on chef Gordon Ramsays filming location in LA for the cooking programme MasterChef.
Jamie Oliver and Michelle Keegan take on our Saturday Night Takeaway Pizza Portraits Challenge! But who wins? You let us know your opinion in the .
Watch all of Ant & Decs undercover pranks on the Saturday Night Takeaway, including our famous stunts on James Corden, Gordan Ramsay and One Direction!