Dropkick Murphys proudly remain Boston’s rock ‘n’ roll underdogs turned champions. Since 1996, the boys have created the kind of music that’s meant to be chanted at last call, in packed arenas, and during the fourth quarter, third period, or ninth inning of a comeback rally. Whether you caught a legendary gig at The Rathskeller (The Rat) under Kenmore Square, found the band by taking the T to Newbury Comics to cop Do Or Die in ’98, discovered them in Martin Scorsese’s Academy Award winning The Departed, or saw ‘em throw down at Coachella (or one of hundreds of other festivals), you’ve become a part of their extended family.