Rock chick Sharon Osbourne will join Louis Walsh for judges' houses stage

Sharon Osbourne is to return to The X Factor for a one-off appearance – 2 years after quitting the ITV show.

The former judge has signed up to help Louis Walsh, 58, pick his finalists during the judges’ houses stage of the competition.

Sharon knows she’s only back for one episode and is determined to stir things up and make mischief,’ a source tells The Sun. 

Louis is absolutely delighted she is coming back. He has dearly missed having her around.’ 

Sharon, 57, and Louis will film their scenes later this week in Shannon, Ireland.

She left The X Factor in 2008 after admitting that she couldn’t get along with Dannii Minogue, 38.

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