Country newcomers Old Dominion upset a veteran named Joe Nichols earlier this week. Their song 'Shut Me Up' is proving to be as popular in this song battle as it is on satellite radio. The competition gets stiffer today and Thursday, however. Can the OD nation rise again?

Tim McGraw's third single from 'Sundown Heaven Town' is called 'Shotgun Rider,' and fans may recognize it. The song feels like one from deep in the singer's catalog, perhaps 'Just to See You Smile.' This is a love song, though -- one that's simple, pure and easy to embrace.

Listen to clips of both Old Dominion and McGraw’s songs and vote for your favorite here. You can vote once every hour until this Showdown ends on Friday 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 Friday.

Listen to Old Dominion, ‘Shut Me Up’

Listen to Tim McGraw, ‘Shotgun Rider’

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.