Luke Bryan chats with ET's Denny Directo after 'American Idol's live episode on Monday, which aired on ABC. The star bickers with his fellow 'AI' judge, Katy Perry, over whether she can take his jacket after winning the judges' contest. Luke also reacts to saving Oliver and shares what it was like bringing the contestants to Stagecoach with him. Plus, he opens up about Ed Sheeran and Alanis Morissette filling in for Katy and Lionel Richie while they're away performing at the King's Coronation on May 7.