Andrew Kennedy Irvine, known professionally as Andy Irvine, is an Irish folk musician, singer-songwriter, and a founding member of Sweeney's Men, Planxty, Patrick Street, Mozaik, LAPD and Usher's Island. He also featured in duos, with Dónal Lunny, Paul Brady, Mick Hanly, Dick Gaughan, Rens van der Zalm, and Luke Plumb. Irvine plays the mandolin, mandola, bouzouki, harmonica, and hurdy-gurdy.
He has been influential in folk music for over six decades, during which he recorded a large repertoire of songs and tunes he assembled from books, old recordings and folk-song collectors rooted in the Irish, English, Scottish, Eastern European, Australian and American old-time and folk traditions.
As a child actor, Irvine honed his performing talent from an early age and learned the classical guitar. He switched to folk music after discovering Woody Guthrie, also adopting the latter's other instruments: harmonica and mandolin. While extending Guthrie's guitar picking technique to the mandolin, he further developed his playing of this instrument-and, later, of the mandola and the bouzouki-into a decorative, harmonic style, and embraced the modes and rhythms of Bulgarian folk music.