Jimmy Hall is the American lead singer and harmonica player for the Southern rock group, Wet Willie. Hall was born in Birmingham, Alabama, and reared in Mobile, Alabama. He first gained notoriety in 1970 as the lead vocalist, saxophonist and harmonica player for Wet Willie. The band’s R&B-infused rock and roll style propelled its biggest hit, “Keep On Smilin’,” into the Top 10 on the Billboard singles chart in 1974.