Festival d'Ete de Quebec, Quebec
Quebec City may be famous for their biggest festival, the Carnaval de Quebec, but there is also a large music and entertainment festival in the summer, the Festival d'Ete (summer festival). We booked our plane tickets and then realized that we would be visiting during the festival which worked out fine as we were easily able to find a hotel room booking 3-4 weeks in advance.
The music schedule was pretty varied with all types of music in both English and French and some bigger name acts that I recognized, Twisted Sister and the Scorpions to name a couple. We caught the end of a couple of the acts performing on the stage on rue St. Jean and the amazing tightrope walker that performed on Saturday night as well as some of the street performers that were scattered throughout the city.
We noticed all kinds of people wearing little badges with a flashing red light, apparently you can buy these in advance at a discounted rate for admission to the stages that were fenced off but that might only be for residents of Quebec. I imagine you can also buy them once you are in Quebec City.