He and his brother, Duane Allman, formed the Allman Brothers Band in 1969, which reached mainstream success with their 1971 live album "At Fillmore East". Shortly thereafter, Duane was killed in a motorcycle crash. The band continued, with "Brothers and Sisters" (1973) their most successful album. Allman began a solo career with "Laid Back" the same year, and was perhaps most famous for his marriage to pop star Cher for the rest of the decade. He had an unexpected late career hit with his cover of the song "I'm No Angel" in 1987, and his seventh solo album, "Low Country Blues" (2011), saw the highest chart positions of his career. Throughout his life, Allman struggled with alcohol and substance abuse, which formed the basis of his memoir "My Cross to Bear" (2012). His final album, "Southern Blood", was released posthumously on September 8, 2017.