America's got talent,America's Got Talent (also known as AGT) is an American reality television series on the NBC television network, and part of the global British Got Talent franchise. It is a talent show that features singers, dancers, magicians, comedians, and other performers of all ages competing for the advertised top prize of one million dollars. The show debuted in June 2006 for the summer television season. From season three onwards, the prize includes the one million dollars, payable in a financial annuity over 40 years (or the present cash value of such annuity), and a show as the headliner on the Las Vegas Strip.
Among its significant features were that it gave an opportunity to talented amateurs or unknown performers, with the results decided by an audience vote. The format is a popular one and has often been reworked for television in the United States and the United Kingdom.
The current incarnation was created by Simon Cowell, and was originally due to be a 2005 British series called Paul O'Grady's Got Talent but was postponed due to O'Grady's acrimonious split with broadcaster ITV (later launching as Britain's Got Talent). As such, the American version became the first full series of the franchise. Despite Cowell's involvement in the show's production, his contract with Fox for his involvement with American Idol prevented him from being involved in the show as a judge. After leaving Idol however, Cowell began to produce and judge a version of The X Factor for Fox in 2011.
source: wikipedia