Helmet was formed in New York City in 1989 by founding members Page Hamilton, Henry Bogdan, Peter Mengede and John Stanier. They have had a large impact on many heavy metal, hard rock, nu metal, post hardcore and metalcore acts, with bands such as Tool, Pantera, Mastodon, Converge, Meshuggah, The Dillinger Escape Plan, Queens of the Stone Age, Sepultura, At the Drive In, System of a Down, Nine Inch Nails, Rammstein, Korn, Marilyn Manson, Silverchair, Limp Bizkit, Papa Roach, Slipknot, Staind and many others crediting Helmet as an influence.