One of the musicians who released the Grammy-nominated "Fallling Slowly"  is also a guitarist for what Irish group?
The Swell Season (album) The Swell Season is the self-titled and first album by the duo The Swell Season, (Glen Hansard and Markéta Irglová), released in 2006. "Falling Slowly" went on to be nominated for a Grammy and win the Academy Award for Best Original Song in 2008.
The Chieftains The Chieftains are a traditional Irish band formed in Dublin in November 1962, by Paddy Moloney, Sean Potts and Michael Tubridy. The band had their first rehearsals at Moloney's house, with Tubridy, Martin Fay and David Fallon. Their sound, which is almost entirely instrumental and largely built around uilleann pipes, has become synonymous with traditional Irish music and they are regarded as having helped popularise Irish music across the world.