Sara Evans can't be stopped! Or can she? After besting Billy Currington and Brett Eldredge without so much as a second glance, the seasoned star's new single is up against a surprising country debut from Britney Spears' little sister, Jamie Lynn Spears.

It's been but a week since newcomer Spears unleashed 'How Could I Want More,' a song which earned a Taste of Country Critic's Pick stamp of approval and -- even more impressively -- the approval of thousands of core country music fans. Evans' faithful fans have proven to be a force to be reckoned with in recent Showdowns, but Spears has already shown she's got the chops to compete with the best of them. You decide which single is best!

Listen to both Evans and Spears' 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 at that time.

Listen to a Sample of Sara Evans, 'Slow Me Down'

Listen to Jamie Lynn Spears, 'How Could I Want More'

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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.