Sergey Konstantinovich Mavrin (Russian: Сергей Константинович Маврин, born 28 February 1963), nicknamed "Mavrick" (Маврик), is a Russian musician and composer, who is credited as one of the best guitarists of the Russian metal scene. His music style combines heavy metal, progressive metal and hard rock, and is often dubbed "MavRock". Since 2000, Sergey has had his own radio show, Iron Curtain, on Yunost radio channel. It is dedicated to rock music.