1. Alex and Sierra Q&A: 'X Factor' Duo on Scoring Hits, Songwriting and What's Next

    December 16, 2013 8:15 PM EST Heading into the "X Factor's" finale on Wednesday and Thursday, the iTunes singles chart is making the duo of Alex and Sierra look like significant front-runners. A day after the Dec. 11 show they had five songs bouncing around iTunes' top 50; five days after their…