Riverdance from the packed theatre of 4,000 people. The performance is often considered the most well known interval act in Eurovision Song Contest history. Riverdance was later performed as an interval act at both the "" (2005) and "Eurovision Song Contest's Greatest Hits" (2015) events. Lead dancers Michael Flatley and Jean Butler transformed the previously chaste and reserved traditional dance form into something else entirely. The song "Riverdance" was released as a single and entered the Irish Singles Chart at No. 1 right after the Eurovision debut, staying there for 18 weeks—the longest amount of time a song has ever topped
Riverdance of the Shannon company, and singers Brian Kennedy and Tsidii Le Loka. Colin Dunne briefly returned to Riverdance in July 2002 to perform his original choreographed piece "Trading Taps" at New York City's One World Jam at Radio City Music Hall. In June 2003, Breandán de Gallaí and Joanne Doyle featured as the lead dancers at the Opening Ceremony of the 2003 Special Olympics in Dublin. The Opening Ceremony performance also featured the longest troupe line ever seen in an Irish dance show, with over 100 dancers. "Riverdance" continues to be performed all over the world, in a diminished format