Irish stepdance is a style of performance dance with its roots in traditional Irish dance. It may be generally characterized by a stiff upper body and fast and precise movements of the feet, and can be performed solo or in groups. Aside from public dance performances, there are also stepdance competitions all over the world. These competitions are often called Feiseanna (singular Feis). In Irish dance culture, a Feis is a traditional Gaelic arts and culture festival. Contemporarily, costumes are sometimes considered important in Irish stepdance; costumes are typically designed to attract the judge's eye in competitions and the audience's eye in performance, with widely varying colors and patterns. In many cases, costumes are sold at high prices and can even be custom made. General appearance beside the costume is also equally important, with female dancers typically wearing curly wigs or curling their hair and male dancers often neatly styling their hair to a shape to their liking for competition or performance. Additionally, poodle socks are worn by female dancers while males wear plain black socks. Poodle socks are white socks that have distinctive ribbing, and can be embroidered with gems. This hyper-stylization originated in the Irish diaspora, while traditional costume was homemade or from the local dressmaker and embroidered with Celtic knots and designs.
Riverdance, an Irish step-dancing performance in the 1994 Eurovision Song Contest that later became a hugely successful theatrical production, greatly contributed to its popularity. Once Riverdance became a large production, it changed the way that Irish dance was performed and viewed. Now that entrepreneurs could capitalize on Irish culture, they were able to tweak it to the audience's liking. This meant adding a theatrical flair to the performance, including arm movements (as opposed to the previously rigid top half that dancers maintained) as well as sexualizing the dance and the costumes. To some, this was a betrayal of tradition, but to others, it was a way of expanding Irish culture and became widely accepted. Following after Riverdance was Lord of the Dance and many other theatrical productions based on Irish stepdance; Michael Flatley, an Irish stepdancer, became a well-known name within these shows.