‘X Factor’ moves into demanding boot camp stage

Almost 200 acts survived their first encounters with Simon Cowell on "The X Factor," but this week’s boot camp episodes of the TV singing contest will sort out the weak from the strong. "X Factor" creative director Brian Friedman said the aspiring singers went through several days of tough vocal, dance, performance and style training in Los Angeles before they were whittled down to 32 acts.

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