DJ Diamond Kuts and Tierra Whack kick it backstage at our July Power 99 Peace on the Streets! We so want to be part of this. Check out the full interview below: CLICK HERE TO SEE TIERRA WHACK PERFORMANCE PICSTierra Whack at July 2018 Peace on the Streets PicturesPhilly's own Tierra Whack performing live on stage at our July 2018 Peace on the Streets at Festival Pier, Philadelphia.