'X Factor' hopeful Stacy Francis has a big voice. Huge. Like massive. There is no denying the fact that she could rival Mariah Carey in the glass shattering, high octave category. The girl can sing, and she summons emotion from the depths of her core and funnels it through her mouth and in her songs. That said, she is a bit of a conundrum, since she's over 30, is getting a late start and she straddles the line between a few genres without pledging allegiance to any in particular.