Street Dogs is a punk rock band hailing from Boston, Massachusetts. The lead singer is Mike McColgan, former lead singer of Dropkick Murphys. In 1998, McColgan left Dropkick Murphys, after releasing their first full-length record, Do or Die, to pursue a life-long dream of becoming a firefighter for the Boston Fire Department. Street Dogs formed in 2002 after McColgan decided he could no longer stay away from music.