Major Matt Mason USA is the performing name of Matt Roth, a New York City-based musician and record producer, is active in the Anti-folk and DIY music scene of New York's East Village. A native of Shawnee, Kansas, Roth moved to New York in the early 1990s, where he received his new name, based on the action figure Major Matt Mason. He has established Olive Juice Music, which is a recording studio, independent record label, and online record shop, headquartered in his apartment in the Lower East Side. Anti-folk artists he has worked with, as collaborator, producer, and/or distributor, include Jeffrey Lewis, The Moldy Peaches, Toby Goodshank, Rachel Trachtenburg, Brer Brian, Peter Dizozza, The Baby Skins, Prewar Yardsale, The Leader, Dan Fishback, Dave End, Frank Hosier, and Elastic No-No Band. In addition to his work as a solo performer, he is also a member of the bands Schwervon! (a rock duo featuring Roth's longtime girlfriend Nan Turner) and Kansas State Flower. Mason has toured extensively throughout the US and Europe with Schwervon! and as a solo performer, often supporting members of the antifolk movement, such as Jeffrey Lewis or affiliated bands (Misty's Big Adventure), or more recently as the headline act.