Trent Harmon is on a Showdown hot streak. The most recent American Idol winner won his fourth straight over the weekend, topping Blake Shelton's "Savior's Shadow." That follows wins against stars like Carrie Underwood and Kelsea Ballerini. "Falling" needs just one more win to enter the prestigious Showdown Hall of Fame.

The sexy ballad from the Mississippi-raised crooner will face the latest from Zac Brown Band on Monday and Tuesday. "Castaway" is the country jam band's most island-friendly single yet. It sounds best on a beach with something sweet in your hand and maybe under your arm. The group's fans will need to bring their best effort to top Harmon.

Listen to clips of both Harmon and the ZBB’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 Trent Harmon, “Falling”

Listen to Zac Brown Band, “Castaway”

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.