Piers Morgan has announced that he's quitting 'America's Got Talent' in order to concentrate on his CNN show. Morgan -- who's one of the original judges on the NBC show -- Tweeted "I'm leaving America's Got Talent after 6 wonderful years. Turned out that juggling's harder than it looks, so I'm going to focus on CNN." He then confirmed the news on 'Piers Morgan Tonight,' joking that he's also now available to host the Oscars.

He went on, "Big thanks to NBC, Fremantle, and of course, my friend Simon Cowell, for giving me such a great opportunity. It's been a blast." He also congratulated his colleagues on the show -- Sharon Osbourne, Howie Mandel and Nick Cannon: "You don't have to put up with me any more!"