To benefit guitarist Joe Bonamassa and his Keeping The Blues Alive Foundation, the music of B.B. King, Albert King and Freddie King will take center stage at the Susquehanna Bank Center in Camden on Aug. 7 and the PNC Bank Arts Center in Holmdel on Aug. 8. The ever-eclectic Bonamassa has dabbled in metal, jazz, classical and pop but it’s the blues that owns his heart. He can sting that electric like B.B. and here, he’ll get a chance to channel all three late legends.