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Katy Perry, Derek Hough at 'Los Angeles Haunted Hayride' event

Katy Perry attends the 4th Annual Los Angeles Haunted Hayride VIP Premiere Night held at Griffith Park on Sunday, Oct. 7, 2012. <span class=meta>(John Shearer/Invision for LAHH/AP Images)</span>
October 9, 2012 12:00:00 AM PDT