Ocean City. Maryland improvisational group Muskrat Lightning let it all hang out on their version of "After Midnight," a 1966 swamp rock song from Oklahoma City, Oklahoma guitarist JJ Cale, which was popularized four years later on the eponymous debut album from Surrey, UK artist Eric Clapton.
For more Clapton covers, the Love Runs Blind version of "Wonderful Tonight" can be found here, and the Autumn Boukadakis version of "Lay Down Sally" can be found here.