Dioguardi Out, Tyler In At American Idol – Report

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July 30, 2010 | 7:35am EST

Singer/songwriter Kara Dioguardi has been fired from American Idol – and is set to be replaced by Aerosmith rocker Steven Tyler, according to a new report.

The revolving door of judges on the TV talent show is spinning once again – Dioguardi is said to have been booted from the judging panel as part of producers’ ongoing cast shake-up.

TMZ.com reports TV bosses have finalised deals to recruit both Tyler and Jennifer Lopez, who will join Randy Jackson for a three-judge format on the upcoming 10th season, due to premiere in January.

The news follows Ellen DeGeneres’ shock announcement on Thursday that she is stepping down from her judging role after just one series on the show, replacing Paula Abdul.

Simon Cowell, who has been with the show since its 2002 inception, quit to concentrate on launching a new series, The X Factor.