‘Nashville’ Previews New Song “Undermine” (VIDEO) (UPDATED)

Check out a behind the scenes look at the writing of a new song from this week’s upcoming Nashville called “Undermine,” cowritten by 1 of the country music’s buzziest new acts, Kacey Musgraves. Includes scenes from and commentary about this week’s episode, AND Kacey’s FULL version of the song! UPDATE: Now with a clip of another new song!