Brad Paisley fans loaded up the phone lines at Taste of Country Nights radio last night, pushing his new song 'Southern Comfort Zone' past the new single from the Zac Brown Band. Paisley's first offering from his upcoming album took 55 percent of the online and phone voting, meaning he'll move on to face another song today.

Little Big Town have released the title track from their new 'Tornado' album as a follow-up to 'Pontoon.' It's every bit as unique as the lead single, but much, much moodier. Karen Fairchild leads this stormy country song with a western rhythm. It will be up to fans of the quartet to push them past Paisley on Thursday.

Listen to clips of both Paisley's and Little Big Town's songs and vote for your favorite here. You can vote once every hour online, so come back and vote often to be sure your artist wins. Hear the full versions of the songs tonight after 10PM on Taste of Country Nights. Help your favorite song win by placing additional votes at (888) 678-9995. Call as many times as you like! You can listen to the show online through any of the 41 radio stations that carry it. Voting will end tonight at 10:40PM CT.

Listen to a Sample of Brad Paisley, 'Southern Comfort Zone'

Listen to a Sample of Little Big Town, 'Tornado'

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, and as much as you want by calling (888) 678-9995. If a song wins five days 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.