ACM Awards: Tim McGraw Duets With Faith Hill on New Single

Tim McGraw, Faith Hill at the ACMs

Faith Hill and Tim McGraw perform onstage during the 49th Annual Academy Of Country Music Awards at the MGM Grand Garden Arena on April 6, 2014 in Las Vegas

One of the biggest events of the night during the 49th Annual Academy of Country Music Awards was the debut of Tim McGraw's new song, the traditional-flavored "Meanwhile Back At Mama's." From his upcoming Big Machine disc scheduled for release on September 16, the record also brought a familiar McGraw collaborator to the stage.

Midway through the song, the crowd at the MGM Grand Arena erupted in applause with the appearance of McGraw's wife and 14-time ACM winner Faith Hill, who added her distinctive Mississippi harmonies to the track.