The heartbreaking song was written by Kelly Archer, Aaron Scherz and Emily Shackelton and tells the tale of each woman sadly realizing that she's not the only one and she has never been enough for her man.

Both McEntire and Nettles know their man is keeping a big secret from them and trade verses and laments throughout the song. "He thinks it's best to tell me lies/ He don't even try to hide the truth/ So he won't hurt me/ He made a promise he can't keep/ He can't promise anything," McEntire and Nettles sing on "Enough."