The annual event was started in 2007 by Go Topless, a Nevada group formed by Claude Vorilhon, leader of the Raelian Movement, a UFO religion.

The event encourages women to go topless in public, and men to cover their chests by wearing brassieres or bikinis.

Protesters, both men and women, participated in rallies held in twelve U.S. states, including California,[13][14][15][16][17] New York and North Carolina.

Nearly twenty women went topless going from Queen Street East to Kew Beach on a pick-up truck sounding loudly the song "Revolution" by The Beatles.

"[3] In 1996, the Ontario Court of Appeal overturned the 1991 conviction of Gwen Jacob, saying "there was nothing degrading or dehumanizing" about baring her breasts in public.

Men who support the group's mission were asked to cover their nipples with pasties or bras.