Blake Shelton's current single is a cover of Michael Bublé's hit, "Home," and the two singers performed it together Wednesday night (March 12) during Bublé's concert at Nashville's Sommet Center. Shelton had never met the Canadian-born singer before, but during their visit backstage, Bublé invited him to perform the song with him. Shelton's recording of "Home" is available as a digital download and on Collector's Edition, a five-song CD available exclusively at Wal-Mart.