Photo by Dino Perrucci

Davy Knowles collaborated with Warren Haynes numerous times when his band Back Door Slam toured with Gov’t Mule. On Tuesday night, Knowles shared the stage with Warren Haynes once again. The guitarist—who has performed with The Rhythm Devils as of late—emerged at the end of Warren Haynes Band’s show at Chicago’s Park West for a take on “Thats What Love Will Make You Do.” Knowles will perform at New York’s Iridium on Monday while Haynes will appear at Gulf Shores, AL’s Hangout Festival this weekend.