Massimiliano Adelmo "Mass" Giorgini (born 1968) is an Italian-American bassist and record producer, who rose to fame when several of the bands he produced experienced huge gains in popularity during the pop-punk boom on the mid-‘90s. Among these bands was Giorgini's own Squirtgun, which received minor MTV rotation and several soundtrack appearances in major films in the 1990s. Mass Giorgini is also the son of renowned Italian artist Aldo Giorgini.