It was 39 years ago today that a bunch of hippies kicked off the first epic lovefest at Woodstock -- smoking grass, dropping acid and engaging in sweet, consequence-less free love on a 600-acre dairy farm in Bethel, New York. Oh yeah, and some bands played, too.

Not only did the Woodstock festival usher in a new era in rock music, it set a precedent for enjoying that rock music free from the oppression of clothing. When the first young people at Woodstock decided to frolic in the nude and skinny-dip in nearby ponds, they showed the world that a change (of clothing) was gonna come.

Asylum is proud to commemorate the occasion with a gallery of some of the finest moments in festival nudity. Because the only thing better than listening to music outside is listening to music outside with the air on your junk.

Great Moments in Festival Nudity

    Thirteen men start the traditional Nude Race at the Roskilde Festival in Copenhagen. The fastest of the runners were awarded T-shirts, tents and skin care products. Any nude woman would have been awarded a prize just to participate but no one showed up.

    Carl Redhead, AFP / Getty Images

    A group of people lie on the ground for a community nude picture by a fashion photographer at the Black Rock City's play during the Burning Man Festival in Nevada. An estimated thirty thousand people attend the festival, a spontaneous encounter of artists, performers and spectators, where the audience is expected to interact and collaborate during a week long event.

    Hector Mata, AFP / Getty Images

    Spectators covered in mud attend the Woodstock '94 at Winston Farm in Saugerties, NY.

    Remi Benali, Getty Images

    Festival goers enjoy themselves on the third and final day of the Glastonbury Music Festival in Somerset, England.

    MJ Kim, Getty Images

    Red Hot Chili Peppers performing at Woodstock '99.

    Frank Micelotta, Getty Images

    A naked roadie for The Wildhearts hands a guitar to lead vocalist "Ginger" at "The Carling Weekend: Reading Festival."

    Louise Wilson, Getty Images

    Hippies with matching floral motifs painted onto their chests during the Isle of Wight pop festival in 1970.

    Roger Jackson, Central Press / Getty Images

    People skinny dipping in a river during Woodstock 1969.

    Bill Eppridge, Time Life Pictures / Getty Images

    Hippie festival-goers enjoy the sunshine and good vibes at the second Glastonbury Fayre in 1971.

    Ian Tyas, Keystone / Getty Images

    Nick Oliveri formally of QOTSA. during the third music festival Rock in Rio, in Rio de Janeiro, Brazil.

    Bruno Domingos, AFP / Getty Images