He's coming back! Jazz 91.9 WCLK presents Classic.Cool.Smooth. Benefit Concert featuring Jazz Singer Gregory Porter on Saturday, September 28, 7:30 PM at Ferst Center for the Arts at Georgia Tech. On the back of last year’s sold out concert, Jazz 91.9 WCLK will host Porter in Atlanta for an evening of shear musical mastery. Porter will return with new music from his soon to be released album, Liquid Spirit.