In the United States, and increasingly in the United Kingdom and Canada, a promenade dance, most commonly called a prom, is a semi-formal (black tie) dance or gathering of high school students. This event is typically held near the end of the senior year (the last year of high school).

Proms figure greatly in popular culture and are major events among high school students. High school juniors attending the prom may call it “junior prom” while high-school seniors may call it “senior prom”. In practice, this event may be a combined junior/senior dance.
As Americans gained more money and leisure time in the 1950s, proms became more extravagant and elaborate, bearing similarities to today’s proms. The high school gym may have been an acceptable setting for sophomore dances (sophomore hop), but junior prom and senior balls gradually moved to hotel ballrooms and country clubs. Competition blossomed, as teens strove to have the best dress, the best mode of transportation, and the best-looking date. Competition for the prom court also intensified, as the designation of “prom queen” became an important distinction of popularity. In a way, prom became the pinnacle event of a high school student’s life, the ultimate dress rehearsal for a wedding.