Cortex is a jazz funk band formed by band leader Alain Mion in 1974. Cortex is known for polyrhythmic instrumentals and funk, bossa nova, samba-jazz, and psychedelic rock grooves, mixed with atmospheric vocals, inspired by 1970s American funk and jazz. Cortex broke up in 1981, but reformed in 2009 with a rotating group of members. Hip hop samples of Cortex songs in tracks from artists including MF DOOM, Madlib, Tyler the Creator, Flying Lotus, Lupe Fiasco, and Suicideboys have brought newfound interest to the band starting in the early 2000s.