Simon Cowell’s upcoming reality competition The X Factor has doubled the number of its audition cities. In addition to the 6 open call auditions which are now ongoing, the Fox series is adding  6 more locations, Honolulu, HI, and Phoenix, AZ, Nashville, TN, Anchorage, AK, Kansas City, KS, and Denver, CO, where hopefuls can audio- and video-record their a cappella audition in high-definition mobile recording studios. “These studios were brought to my attention some months ago, and we think they are brilliant way to audition for those people who haven’t been able to make it to the cities,” Cowell said.