Big & Rich and Keith Urban will kick off the first Rock'n the Rally Music Festival in Sturgis, S.D., on Aug. 6. Cowboy Troy, Cross Canadian Ragweed and Shooter Jennings are also on the bill. The five-night concert series coincides with Sturgis Bike Week, scheduled for Aug. 7-13. Other artists performing during the festival include Aerosmith, Cheap Trick, Sammy Hagar and the Steve Miller Band. Organizers are building an $11 million, 34-acre amphitheater on the nearby Glencoe Camp Resort to prepare for the event.