Jack White with the Dex Romweber Duo

Jack White has joined forces with Southern rock'n'rollers the Dex Romweber Duo for a new seven-inch single.

White has confessed to being a longtime fan of Dex Romweber, who is the former frontman for retro-rockabilly outfit Flat Duo Jets, and who now performs with his sister (his real sister, not his "Meg White" sister) Sara Romweber.

"Dexter Romweber was and is a huge influence on my music," White said in the 2006 Romweber documentary Two Headed Cow. "I owned all of his records as a teenager…[He] is one of the best kept secrets of the rock'n'roll underground."

The single features two songs recorded at White's home studio in Nashville. The pair share vocals on a cover of blues singer Geeshie Wiley's "Last Kind Word Blues" and Romweber's "The Wind Did Move," which Romweber described to Nashville-based site Metromix.com as "dark, sort of hillbilly blues." Sara Romweber plays drums on the record.

"Jack likes to move things along quickly and he's a very positive producer," Romweber said, later confessing to being moved by White's admiration for his legacy: "It feels good. I can go to my grave and at least know I accomplished something. Nothing gigantic. But still, it's something. It's touching."

The record, which was produced by White and engineered by Vance Powell (who has previously worked with the Raconteurs and the Dead Weather), is due to be released in late May via White's label, Third Man Records.