Matmos is an experimental electronic music duo originally from San Francisco but now residing in Baltimore. M. C. (Martin) Schmidt and Drew Daniel are the core members, but they frequently include other artists on their records and in their performances, including notably J Lesser. Apart from releasing nine full-length studio albums and numerous collaborative works, Matmos is also well known for their collaboration with Icelandic singer and musician Björk, both on studio recordings and live tours. After being signed to Matador Records for nine years, Matmos signed with Thrill Jockey in 2012. The name Matmos refers to the seething lake of evil slime beneath the city Sogo in the 1968 film Barbarella.