Dervish is an Irish traditional music group from County Sligo, Ireland which has been described by BBC Radio 3 as "an icon of Irish music".They were formed in 1989 by Liam Kelly, Shane Mitchell, Martin McGinley, Brian McDonagh, and Michael Holmes and have been fronted by singer Cathy Jordan since 1991. They represented Ireland in the final of the Eurovision Song Contest 2007, singing a song written by John Waters and Tommy Moran, finishing in last place.