The veteran seven-piece Celtic punk band is celebrating its 15th anniversary as well as the 10th anniversary of its sophomore album, Drunken Lullabies, the first album by the band to go gold. The band’s most recent LP, 2011’s Speed Of Darkness, chronicles the experiences of those hit hardest by the financial crisis. Opening act, The Devil Makes Three, filters roots music through a punk sensibility. The drummer-less trio’s music is a blend of ragtime, folk, blues, country, and rockabilly. The music of headliner Flogging Molly blends traditional Irish folk music with punk in songs that give voice to the hardscrabble existence of the downtrodden.-Andrew Crowley