I am a big fan of the Dropkick Murphys. I am on their e-mail notification lists, and am a friend of one of the team. On reading the post here about the music, I listened to it and notified DKM's manager via email of the presence of the trailer. I received a reply that, they were looking into it as I and several other fans had advised them of it.
I also live in Boston, their hometown. Ken and Scruffy are actively involved in a local pub that I occasionally frequent (awesome Shepherd's Pie, BTW). This trailer was brought up in conversation with them as well. McGreevey's on Boylston St in the Back Bay, if you are ever in the area.