Glassjaw (sometimes stylized glassJAw or GlassJAw) is a four-piece experimental/post-hardcore  band from Long Island, New York. The band is fronted by vocalist Daryl Palumbo and guitarist Justin Beck, and have undergone numerous line-up changes since their inception. The band has been influential in the progression of the underground music scene in the eastern United States and United Kingdom and on the post-hardcore genre, and are known for their intense live shows[1]  and constant line-up changes.