Rihanna just released the first set of her North American dates, for her US tour, LOUD.

June 4               Baltimore, MD                       1st Mariner Arena
June 7               Toronto, ON                           Air Canada Centre
June 28             Los Angeles, CA                   Staples Center
June 30             Oakland, CA                         Oracle Arena
July 19              Philadelphia, PA                   Wells Fargo Center
July 21              East Rutherford, NJ               Izod Center
July 23              Uniondale, NY                      Nassau Coliseum