LOS ANGELES, CA - MAY 19: Guitarists Warren Haynes and Mike Campbell perform in concert with the Allman Brothers Band at the Greek Theater on May 19, 2009 in Los Angeles, California. Getty Images logo Getty Images 6 months ago

LOS ANGELES, CA - MAY 19: Guitarists Warren Haynes and Mike Campbell perform in concert with the Allman Brothers Band at the Greek Theater on May 19, 2009 in Los Angeles, California.