A cool skaish (3rd wave not 2nd) band from Boston that features rapid songs and lyrics. They were the Mighty Bosstones until a stuttering DJ called them the Mighty Mighty Bosstones and the name stuck. They've been around about a decade now and only gained national fame recently with The Impression that I get, which received lots of air time.
They have a great sound and a guy whose sole function is dancing. Defined ska-core. Originally they were seen as a primarily ska band, then with their 2nd album they swung towards punk and they have gone back and forth ever since. Extremely loyal to Boston, they tour almost nonstop but return each year for a weekend of shows at the fabled Middle East in Boston.