Glen Hansard

Musician Glen Hansard of The Swell Season performs during Day 2 of the Coachella Valley Music & Arts Festival 2011, at the Empire Polo Club on April 16, 2011 in Indio, Calif.

One of Ireland's most highly-regarded musicians, Hansard was behind the bands The Frames and The Swell Season, and the Oscar-winning film "Once," which has since become an award-winning stage musical.

By CBSNews.com senior producer David Morgan