Prom Photo Releases

Hey guys. I'm taking some pictures out in the park of a big group of kids before they go to their prom. I'm going to be selling some print packages to them, but mainly I'm wondering if I need to be getting any kind of model releases from them. How does this work if they are under 18 years of age? Basically, what do I need to bring with me to the shoot to make sure all bases are covered?

Thanks for your help!

You shouldn't need a release unless you're going to do something with the photos besides sell them to the students.

A parent would have to sign. And it's 21 in some states.

I agree.

Thanks guys!