Iarla O Lionaird (born 18 June 1964) is an Irish singer and record producer. He sings in the traditional sean-nós style. He was a member of the Afro Celt Sound System and is a member of the Irish-American supergroup The Gloaming. He has recorded several solo albums for Real World Records. He appeared in the 2015 film Brooklyn singing an a cappella version of the Irish folk song "Casadh an tSugain". 　　O Lionaird was born and raised in Cúil Aodha in the West Cork Gaeltacht, a primarily Irish-speaking region. His father was a teacher and his mother and grandmother were singers in the traditional sean-nós style. Elizabeth Cronin, whose singing was recorded by Alan Lomax, was O Lionaird's great-aunt. o Lionaird was one of twelve children in his family. 　　O Lionaird first sang publicly at the age of five, and made his first radio broadcast at seven. At the age of twelve he recorded the traditional song "Aisling Gheal" for Gael Linn Records.:159 He joined Seán Riada's male voice choir Cór Chúil Aodha as a child and sang in the choir, directed after Sean Riada's death by his son Peadar, until he was in his early twenties.O Lionaird earned a Bachelor of Education degree at Carysfort College in Dublin and was employed as a primary school teacher for seven years before making a career as a singer.