I also finally have an idea for what I want to paint in my art class this summer! I'm going to attempt to paint Polaroid/analog inspired portraits that have imperfections, distorted colors, and light flares. It should either be really fun or really frustrating...
I like this Minneapolis-based band called Night Moves. Check out their free album via Afternoon Records and listen to "Headlights"! It has some good summer vibes that I'm sure you'll appreciate.