Igor Fedorovich "Egor" Letov (Russian: И́горь Фёдорович "Его́р" Ле́тов, IPA: [ˈiɡərʲ ˈfʲɵdərəvʲɪtɕ jɪˈɡor ˈlʲetəf]; (10 September 1964 – 19 February 2018)[1] was a Russian poet, musician, singer-songwriter, audio engineer and conceptual artist, best known as the founder and leader of the post-punk/psychedelic rock band Grazhdanskaya Oborona (Russian: Гражданская Оборона, lit. 'Civil Defense'). He was also the founder of the conceptual art avant-garde project Kommunizm and psychedelic rock outfit Egor i Opizdenevshie. Letov collaborated with singer-songwriter Yanka Dyagileva and other Siberian underground artists as a record engineer and producer.