Music remains the one constant for Gregg Allman, 49. The gritty-voiced singer has been married five times — most notoriously to Cher from 1975 to 1978 — and has had a painfully protracted off-again/on-again affair with drugs and alcohol. Over the years, the ramblin’ man has sired five children (including his son with Cher, Elijah Blue Allman, now 21 and a guitarist); currently single, he lives in a wooded area of Marin County, Calif. Despite his chaotic personal life, Allman continues to perform and record, both as a solo artist and with the Allman Brothers Band, which plays 50 to 90 sold-out shows a year. His new album, Searching for Simplicity, is due Nov. 11, on 550 Music; he begins a tour Nov. 5. ”Gregg once told me that getting on stage and pouring your heart into a song was like being born again,” says Scott Freeman, author of Midnight Riders: The Story of the Allman Brothers Band. ”He truly lives for the music.”