Blake Shelton delighted fans at a recent live appearance when he introduced his new wife, Gwen Stefani, as "Gwen Stefani Shelton." On Tuesday, Shelton performed at night one of CMA’s Summer Jam event in Nashville, Tenn., but surprised the crowd by inviting his new bride on stage for a performance of their duet "Happy Anywhere." People reports that Shelton introduced the singer and fellow "The Voice" coach as "Gwen Stefani Shelton," prompting the crowd to go wild with applause and marking the