I am from Wisconsin where Harley Davidson is also from. Friday is International female biker day. The women will be on a ride that ends at the Harley Davidson Museum. There will be a band there that I have permission to shoot. My question is with the random riders and bikes that will be there. If I shoot the bikers and bikes, do I need releases from everyone I happen to shoot? There will be hundereds of people there, if not thousands. How does one handle situations like this with huge amounts of people? After the shoot I plan on sending Harley a link to my stuff to see if they want to use anything. I would also shop the bike photos around. So do I need a release for every single person and bike?