The British musician Benjamin Clementine moved to Paris when he was a teenager, with little more than a mystical baritone voice. He would sing barefoot in hotels and on the Metro, was discovered on the streets, and for a whole year wore nothing but a coat he found in a trash bin. "I wore it to sleep," he says. Clementine's debut album, in 2015, won the U.K.'s prestigious Mercury Prize, and next month the 28-year-old, whose sound is often compared to Edith Piafs and Nina Simone's, releases his second album, I Tell a Fly, and headlines New York's Carnegie Hall. He still prefers to perform barefoot in a coat: "I adopted this feeling that the stage is my home, so just keep my coat on and not wear anything else."