Choose the Cover contest finalists Lelia Broussard and the Sheepdogs just faced off in a battle of the bands at the Bonnaroo festival this past weekend, but are already set for a rematch on tonight's episode of Late Night with Jimmy Fallon.

Choose Rolling Stone's Cover: The Sheepdogs vs. Lelia Broussard. Vote Now!

The details of what will go down on the show are a secret, but Sheepdogs frontman Ewan Currie spilled a bit of info about the segment when we caught up with him at Bonnaroo. "We’re gonna have to be improvising or creating in a limited amount of time a new song or something," says Currie. "Actually, I think that’s right up our alley. We’re pretty good at improvising and I definitely think we can come up with something exciting and fun and hopefully win the crowd over."

You can tune in to see what happens tonight on Late Night at 12:35 a.m. ET and 11:35 p.m. CT on NBC. After watching the segment, be sure to vote for your favorite!

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