American Idol

American Idol was created based on the British show Pop Idol, which was in turn inspired by Popstars, a show TV producer Nigel Lythgoe saw in Australia and brought over to Britain.Using the idea from Popstars of employing a panel of judges to select singers in audition, then adding other elements such as telephone voting by the viewing public (which at the time was already in use in shows such as the Eurovision Song Contest) and the drama of backstories and real-life soap opera unfolding in real time, Simon Fuller then created Pop Idol.The show debuted in 2001 in Britain with Lythgoe as the producer and Simon Cowell as one of the judges, and was a big success with the viewing public.

Fuller and Cowell attempted to sell the Pop Idol format to the U.S. in 2001, but the idea was met with poor response from U.S. TV networks.However, Rupert Murdoch, head of Fox's parent company, was persuaded to buy the show by his daughter Elisabeth, who was a fan of the British show.The show was renamed American Idol: The Search for a Superstar and debuted in the summer of 2002, and became one of the summer hit shows that year.The show, with the personal engagement of the viewers with the contestants through voting, and the presence of the caustic-tongue judge Simon Cowell, grew into a phenomenon. By 2005 it had become the biggest show on U.S. TV, a position it then held on for seven straight years. The show is scheduled to remain on air until 2015.

The finals are broadcast in prime time from CBS Television City in Los Angeles, in front of a live studio audience. The finals lasted eight weeks in season one, eleven weeks in subsequent seasons until season ten which lasted twelve weeks. Each finalist performs songs based on a weekly theme which may be a musical genre such as Motown, disco, or big band, songs by artists such as Michael Jackson, Elvis Presley or The Beatles, or more generic themes such Billboard No.1 hits or songs from the contestant's year of birth. Contestants usually work with a celebrity mentor related to the theme. In season ten, Jimmy Iovine was brought in as a mentor for the season. Initially the contestants sing one song each week, but this is increased to two songs from top four or five onwards, then three songs for the top two or three.

The most popular contestants are usually not revealed in the result show, instead typically the three contestants (two in later rounds) who received the lowest number of votes are called to the center of the stage. One of these three is sent to safety, the two remaining however need not both be ones with the fewest votes.The contestant with the fewest votes is then revealed and eliminated from the competition. A montage of the eliminated contestant is played and they give their final performance. However, starting in season eight, the judges may overturn viewers' decision with a "Judges' Save" – they can save a contestant on a unanimous decision, but two will be eliminated the following week. The save can only be used once, and only before top five. In the finale, the two remaining contestants perform to determine the winner. For the first six seasons, apart from season two, the finale was broadcast from the Kodak Theatre, which has an audience capacity of approximately 3,400. The finale for season two took place at the Gibson Amphitheatre. From season seven onwards, the venue was changed to the Nokia Theatre, which holds an audience of over 7,000. A special two-hour result show the next night follows where the winner is announced at the end.