Watch Katharine McPhee Take on Christina Aguilera's 'Beautiful' in New Smash Music Video
American Idol veteran Katharine McPhee is headed to the Great White Way (on TV at least!) in NBC's upcoming Broadway-centric series, Smash. McPhee stars as an aspiring actress hoping to get her big break in a new musical about Marilyn Monroe. As the show nears its February 6, 2012, start date, a new music video featuring McPhee belting the popular Christina Aguilera tune "Beautiful" has surfaced. The cl…