We celebrate the life and legacy of Georgia singer and songwriter Gregg Allman, who died over the weekend. Allman revolutionized rock and roll in the South. He spoke with "On Second Thought" host Celeste Headlee in 2015 shortly before he was inducted into the Georgia Music Hall of Fame. Allman explained how he got his start singing with The Allman Brothers Band and what Macon means to him. He also revealed the origins of the song “Melissa,” and he took a stand for artists who struggle to make a living.