By Brittney McKenna

The long four days of camping in the Tennessee heat at Bonnaroo aren't for the faint of heart, and the festival usually brings out the most dedicated, adventurous and, perhaps most importantly, youngest of music fans. But that apparently goes for "young at heart."

Funny Or Die proved that Bonnaroo isn't just for millennials with its new video "Old People at Bonnaroo." The comedy site sent four septuagenarians to The Farm in Manchester, Tennessee, and the results are pretty hilarious.

For example, 74-year-old Anne of Winnetka, IL prefers Kenny G to the Bonnaroo lineup, but she did enjoy the flash tattoos she got from a group of girls out at the campground. "Mine is a bracelet, of course," she explains of her tattoo. "All of the girls are wearing them at the park. They said I'm one of the girls."

79-year-old Denny of nearby Tullahoma is a little more open to the music, asking a group of festival-goers which artist he should check out. "What was the one, we're on drugs?" he asks, before being corrected by a bandana-ed attendee that it's The War on Drugs, and it's a band.

Over the course of their weekend, the gang hangs out with Houndmouth, hits the silent disco, naps in the artist lounge and even has Mumford & Sons call their grandkids. It goes to show that anyone can enjoy a music festival, young or old. Just make sure you follow that first rule of Roo: drink lots of water.