In case any lingering questions remain about whether these reality competition series in general, and this one in particular, are of more benefit to its judges than its contestants, consider this. On the same show as the Top 9 artists perform live in hopes of advancing to next week, current judge Blake Shelton teams with recurring judge Gwen Stefani to debut “Go Ahead and Break My Heart,” a song from his new album. Oh, and since meeting on The Voice, of course, they’re now together, and not just as a recording duo – and reportedly are at odds with The Voice at the moment because Stefani was passed over as a guest judge next year, in lieu of Miley Cyrus and Alicia Keys. If tonight’s scheduled performance seems at all icy, that may be why.