From San Francisco, California

From last.fm:

Jackie Greene (born Chris Nelson on 27 November 1980 in Salinas, California) is an American singer-songwriter playing folk or roots rock music. He released his first album in 2002 and, in 2005, signed with a major record label, Verve Forecast. In March 2013 he began performing as a member of The Black Crowes. Greene was interested in music from an early age. As a child, he taught himself to play the piano and subsequently the guitar. At 16 he started sitting in for local bands. As he got older he started composing his own songs and ended up playing in coffee-houses. Read more about Jackie Greene on Last.fm.