It was a devastatingly cold winter pretty much everywhere, but warm weather is upon us and movies about superheroes are hitting the big screen, which means we're on the verge of the summer concert season. It seems like every day there's either a farewell or reunion tour announced and our calendars are filling up quickly — it's a lot to track, so we've assembled a handy list of the 40 biggest summer tours, with our picks for potential show highlights as well as the memories that buying a ticket might evoke. Click through to prep your own summer tour schedule. By Andy Greene