<Tr> <Td_colspan="2"> <Ul> <Li> 2006 </Li> <Li> ▶ </Li> </Ul> </Td> </Tr> <Ul> <Li> 2006 </Li> <Li> ▶ </Li> </Ul> <P> The first season of America's Got Talent premiered on June 21, 2006 and concluded on August 17, 2006 . The audition tour took place in April 2006, stopping at Los Angeles, New York, and Chicago . Regis Philbin was the host for this season . David Hasselhoff, Brandy Norwood, and Piers Morgan were the judges . This season's winner was Bianca Ryan . </P> <P> For the audition round, each of the three judges has a red button in front of them that they can press when they do not want the act to continue; the button rings an electronic bell and a large red X with the judge's name lights up over the stage . A louder buzzer indicates the third judge's button was pressed, and the contestant's performance is terminated . Then, the judges deliberate over the act and decide if it gets through to the live semi-finals . In the semi-finals, the judges have X's (red buttons) and check marks (white buttons). Acts are divided into four groups of either 14 or 15, and only 10 of those acts in the group perform . They do not have the power to terminate an act in the middle of his / her performance . At the end of the performance, the judges give the act a check for approval, and an X if they did not like the act . At the end of the episode, the judges would pick an act and automatically move them through to the live finale . Then, the viewers at home would vote another act through to the finale . The act with the most votes from the viewers would move on to the finals and that act would be announced in a live results show the next day . There was also a fifth wild card episode, where the judges picked ten acts who were previously eliminated and give them one more chance to perform . In the finale, there is no judges' choice, and the voting is entirely handed over to the viewers . </P>

Who won first season of americas got talent