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Louis Walsh has admitted Nicole Scherzinger was his favourite X-Factor guest judge this summer.
Scherzinger was initially called up for the Manchester auditions when Dannii Minogue went on maternity leave and then for the bootcamp stage when Cheryl Cole contracted malaria.
Louis said "My favourite was Nicole who I had never met before. This girl has the X Factor in every way. She just got it, was incredibly impressive and ticked every box."
In fact it was Scherzinger who persuaded the show's producers to change the ages of the categories. The boys' and girls' category age limit has been increased to 28.
Scherzinger is one of several celebrities being considered for a role on the U.S. version of The X Factor.