Mustard Plug is an amazing ska band. Formerly having go-go dancers in their entourage (circa '92 or so), they tour with other ska hits such as Skankin' Pickle from Chicago and sound strangely like the Mighty Mighty Bosstones. They have been around since the early 90's, originating in Grand Rapids, Michigan. Hits include "The Beer Song", "Grow Up", "Skank By the Numbers", "Thigh High Nylons", and, my personal favorite "Murder in Tulip City."