Guinness Colored Indie Exclusive Vinyl. The Mary Wallopers are a rabble-rousing six-piece Irish ballad group who started out traveling the length and breadth of Ireland singing collecting songs. Their live performances exude a raw energy that could be best described as Dead Kennedys meets The Clancy Brothers. North American fans will know them from their appearances on the most recent Dropkick Murphys album and multiple Gems On VHS videos.