Fans of Zac Brown Band are stepping up to make sure the band's first single in nearly a year finds as many sets of ears as possible. 'Homegrown' is more feel-good country music from this talented jam band. It's won three straight Showdowns, and it needs just two more to enter the Hall of Fame.

Old Dominion may be a formidable challenger. Like ZBB, this group spent years working hard before finding some success on the radio (satellite radio). 'Break Up With Him' could prove to be their 'Chicken Fried.' A win over one of country's most well-known groups would speak volumes about this 2015 Artist to Watch candidate.

Listen to clips of both ZBB and Old Dominion’s songs and vote for your favorite here. You can vote once every hour until this Showdown ends on Wednesday at 8AM ET, so come back and vote often to be sure your artist wins. The winner of this matchup will face a new challenger on Wednesday.

Listen to Zac Brown Band, ‘Homegrown’

Listen to Old Dominion, ‘Break Up With Him’

Showdown Rules: The song with the most votes wins, and the winner goes on to face a new challenger in the next Showdown. Vote as much as once per hour online. If a song wins five Showdowns in a row, it will be retired into the Taste of Country Showdown Hall of Fame to allow for new songs to compete. Some songs will be considered for a second Showdown if voter turnout is healthy in a losing effort.