A record-setting crowd packed Shorefront Park in Patchogue Friday to see 311 as part of the ninth Great South Bay Music Festival. The waterfront festival, which added a fourth day for 2015, featured four stages and more than 65 acts. Colbie Caillat, Christina Perri and Rachel Platten kicked things off Thursday on Ladies Night. Big-name bands Mighty Mighty Bosstones and Chris Robinson Brotherhood took the stage in the days that followed. Hot Tuna and Jefferson Starship brought on feelings of nostalgia and showed they still have it on Sunday.

The rain held off, and festival-goers of all ages didn’t mind the 90-degree temperatures Sunday as they laid out towels and lawn chairs. Volunteers from Long Island Cares, an organization Great South Bay Music Festival supports, poured beer throughout the weekend, and nearly 20 food vendors served up everything from burgers and grilled cheese to kettle corn. There was even a KidZone for the little ones to play on while mom and dad relived their glory days.

Take a look at the top social media photos and videos from the weekend, and be sure to use #LIPulseWeekends when you’re off duty this summer.

Tell Us: Who delivered the best performance? What was your favorite part of Great South Bay Music Festival?