Bobby Womack, Mavis Staples to Headline Long Beach Blues Festival in September
Don't know Bobby Womack? The Rolling Stones stole a lot of their mid-1970s balladeering from Womack.
And Mavis Staples? Oh man: totally funky. That's Dr. John on piano in the above clip.
The entire line-up, including Bettye Lavette, Kenny Wayne Shepard and the Blind Boys of Alabama, can be found here.