On last night's battle round episode (April 15) of Season 4 of 'The Voice,' two belters closed out the show with an epic vocal bout. Team Adam Levine sent Judith Hill, a former backup singer for Michael Jackson, up to the mic to go vox to vox with Karina Iglesias. They tore through 'It's a Man's, Man's, Man's World.' While it may be a dude's world, at least according to those lyrics, these alpha female divas owned it, bringing the coaches to their feet. It was more like a woman's world. So how did A. Lev choose?