The special will be hosted by Alicia Keys and streamed prior to the presidential election on November 3.
It follows the original version and the recently-released mix featuring up-and-coming R&B artist Summer Walker.
Other victors at the Nashville event included Kane Brown, the Zac Brown Band and Ashley McBryde.
uDiscover reviews the London edition of C2C 2017, the Country to Country Festival, with major current country stars, revered heritage acts and new names.
Reba McEntire has been announced as the third headliner at the 2017 Country to Country Festival, joining fellow giants Brad Paisley and the Zac Brown Band.
2015 was a year of landmarks and exciting happenings in country music, celebrated in uDiscover's latest 20 Songs playlist.
