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
James Jamieson (dancer) James Jamieson (dancer) James Jamieson (1920 – December 25, 1993) was a specialist in Highland dancing, best remembered for both performing in and restaging Agnes de Mille's "Brigadoon". Jamieson (also known as Jamie Jamieson) was a native of Evanston, Illinois and studied at Northwestern University. He began his career in ballet, but by the mid-1940s was an internationally recognized Scottish dance champion. In 1947, de Mille hired Jamieson to coach the cast of "Brigadoon" in traditional Scottish dancing, which inaugurated a decades-long association with the musical. (He had earlier worked with de Mille on the first national tour of "Oklahoma!")