Tonight on The Voice , Blake Shelton sang a country song called "Over." But just like in country songs, it ain't over yet. Before the two-part grand finale airs next week, Teams Blake and Xtina had to work their way through a very wholesome-sounding Killers cover . Coaches Cee Lo and Adam had to listen to Christina take credit for their song choices. (Apparently, Christina already performed Juliet Simms' pick at the Grammys, and had already optioned Tony Lucca's pick for her own team member, Moses. Is no song safe?) And the rest of us got to hear some pretty inspired interpretations of James Brown, Journey, and a little-known hipster favorite named Bach. So before Justin Bieber steals their spotlight on May 8, let's get to the semi-finalists. TONY LUCCA - TEAM ADAM "TON-ee LOU-cah," growled Cee Lo in his best Godfather accent, "Your performance pleases me." Cee Lo wasn't the only one who felt that way. Tonight, Tony made his b...