The band Fun. — (from left) Jack Antonoff, Andrew Dost and Nate Ruess — pose backstage at the "Grammy Nominations Concert Live!" at the Bridgestone Arena in Nashville, Tenn., on Wednesday, Dec. 5, 2012. (Donn Jones/Invision/AP)
The band Fun. — (from left) Jack Antonoff, Andrew Dost and Nate Ruess — pose backstage at the "Grammy Nominations Concert Live!" at the Bridgestone Arena in Nashville, Tenn., on Wednesday, Dec. 5, 2012. (Donn Jones/Invision/AP)
Blake Shelton accepts the award for entertainer of the year at the 46th Annual Country Music Awards at the Bridgestone Arena on Thursday, Nov. 1, 2012, in Nashville, Tenn. (Photo by Wade Payne/Invision/AP)
Blake Shelton accepts the award for entertainer of the year at the 46th Annual Country Music Awards at the Bridgestone Arena on Thursday, Nov. 1, 2012, in Nashville, Tenn. (Photo by Wade Payne/Invision/AP)
Blake Shelton, left, and Keith Urban perform during a tribute to Willie Nelson at the 46th Annual Country Music Awards at the Bridgestone Arena on Thursday, Nov. 1, 2012, in Nashville, Tenn. (Photo by Wade Payne/Invision/AP)
Brad Paisley performs onstage at the 46th Annual Country Music Awards at the Bridgestone Arena on Thursday, Nov. 1, 2012, in Nashville, Tenn. (Photo by Wade Payne/Invision/AP)
Brad Paisley, right, presents the Willie Nelson lifetime achievement award to Willie Nelson at the 46th Annual Country Music Awards at the Bridgestone Arena on Thursday, Nov. 1, 2012, in Nashville, Tenn. (Photo by Wade Payne/Invision/AP)
Blake Shelton, left, hands a guitar to Lifetime Achievement recipient Willie Nelson at the 46th Annual Country Music Awards at the Bridgestone Arena on Thursday, Nov. 1, 2012, in Nashville, Tenn. (Photo by Wade Payne/Invision/AP)
Artists, from left, from left, Dave Haywood, Hillary Scott, Charles Kelley, Blake Shelton, Willie Nelson, Faith Hill and Tim McGraw perform during a tribute to Willie Nelson at the 46th Annual Country Music Awards at the Bridgestone Arena on Thursday, Nov. 1, 2012, in Nashville, Tenn. (Photo by Wade Payne/Invision/AP)
