The Prodigals
The Prodigals is an American Irish punk band that started in 1997.Calling their genre of music "jig punk", the Prodigals fall within a tradition epitomized by the Pogues and Black 47, merging traditional Celtic melodic roots with rock rhythms. As of 2017, the band's lineup features the three original members: Gregory Grene (button accordion and lead vocals), Andrew Harkin (bass), Brian Tracey (drums), plus Galway's Dave Fahy (guitar and lead vocals) who has been a member since 2009. They are frequently joined by Alex Grene, nephew of Gregory, and a graduate in music composition from the University of Chicago. The Prodigals call Paddy Reilly's (the world's only all-draft Guinness bar) their home when in New York City. The band has its own distinctive sound, particularly distinguished by lead melodic roles being filled by button-key accordion and bass along with the vocals, and has received substantial critical notice through the years.
Their songs "Open Reel" and "The Bunch of Red Roses" were played in the film Pride and Glory during the bar fight scene between Edward Norton and Colin Farrell.The Prodigals band has had many changes to its members over the years.  Here is a listing of ex-Prodigals:

Alex Tobias - harmonica, fiddle, and vocals
Sean McCabe - guitar and vocals
Ray Kelly - guitar and vocals
Brendan Smith - drums
Chris Nicolo - drums
Colm O'Brien - guitar and vocals
Ed Kollar - Bass
Eamon Ellams - drums
Eamon O'Tuama - guitar and vocals

Discography
AlbumsThe Prodigals (1997)
Go On (1999), effectively the band's breakout album
Dreaming in Hell's Kitchen (2001, produced by Scottish fiddler and record producer Johnny Cunningham)
Needs Must When the Devil Drives (2003, produced by Howie Beno, who notably also produced the Red Hot Chili Peppers single "Give It Away")
Beachland Bootleg (2005), a live album/DVD recorded at the Beachland Ballroom in Cleveland, Ohio
Momentum (2006)
Whiskey Asylum (2008)
Brothers (2016)Solo/acoustic album

FlipSides (2009)Contributing artistThe Rough Guide to Irish Music (1996)

References
External links
Official Website
A review of Momentum written for the Folk and Acoustic Music Exchange 
An interview with Gregory Grene
Allmusic