Original: Gregory Lenoir Allman (born December 8, 1947 in Nashville, Tennessee), known as Gregg Allman (sometimes spelled Greg Allman), is a rock and blues singer, keyboardist, guitarist and songwriter, best known as a founding member of The Allman Brothers Band.
Simplified: Gregg Allman (born December 8, 1947) is a rock musician. He was a member of the Allman Brothers Band with his brother, Duane Allman, which popularized Southern Rock in the 1970s.