The title track of Little Big Town's Pain Killer album was a big winner on the ToC Showdown earlier this week. The group's love song was sweet enough to top two-time champion Craig Morgan, barely. Today and Thursday they'll take on two country music supergroups.

Vocal fivesome Home Free teamed up with the Oak Ridge Boys for "Elvira," a song from the Oaks' Fancy Free album, recreated for Home Free's most recent album of covers and originals. One almost looks at the collaboration as a passing of the torch, but fans of both groups will need to step up to top LBT.

Listen to clips of both LBT and Home Free’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 Little Big Town, “Pain Killer”

Listen to Home Free (Feat. Oak Ridge Boys), “Elvira”

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.