The Allman Brothers Band was an American rock band formed in Jacksonville, Florida, in 1969. The eponymous brothers Duane and Gregg Allman founded it with Dickey Betts, Berry Oakley, Butch Trucks, and Jai Johanny "Jaimoe" Johanson. From Wikipedia
The singer opens up about their whirlwind romance, struggles with addiction, and eventual breakup in her latest book.