Biography
Defisis
Real name: Shaun Nicholson
Effective period / Period of releases: 2004 - 2007
British hip-hop MC and producer, Defisis aka Optimum Rhyme aka Tatsuo Gemusai. Born 1976 in Birmingham, UK. He died in 2018. He made up one half of DFXO together with Xeno and was also a member of Shadowless.