Huge shakeup at Simon Cowell's new show "X-Factor" -- TMZ has learned singer Cheryl Cole will no longer be a judge ... and will be replaced by ex-"Pussycat Dolls" member Nicole Scherzinger.
It's unclear why Cheryl is out -- but we're told the replacement happened very recently.
Nicole was originally supposed to co-host the show with Steve Jones when it debuts in September -- but now, she'll be sitting on the judge's panel alongside Simon Cowell, Paula Abdul, and LA Reid.
Calls to Cowell's camp have not been returned.
Story developing ...
by Pussycat Doll
5/25/2011 3:10 PM PDT BY TMZ STAFF
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