Thomas Rhett beat out the Zac Brown Band last week on the K-LAW Country Song Showdown. This week it's trio vs. trio, and each trio features a girl and two brothers. The Band Perry is back with a new song called 'Better Dig Two', while Gloriana has released the new tune 'Can't Shake You'. Each of the videos are below. Take a look and listen, then vote for the song you like best. Voting will be open for this Country Song Showdown until midnight Monday, December 10th.