Cisco Ottawa Bluesfest organizers today announced several more acts to be added to the preliminary line-up, unveiled two weeks ago. Seminal west-coast rap icon and one of hip-hop's best and most controversial artists, Ice Cube is slated for July 14; Canadian psychedelic rock-band Black Mountain will perform on July 17; New York indie art punk sensations, Yeah Yeah Yeahs are in on July 19; and Jack White’s new project The Dead Weather are also lined up for the final day of the ‘fest, July 19.