Sergey Polyanskiy is best known as lead guitarist for ##### (5diez), one of the most known and successful Russian alternative metal bands. Sergey have recorded four studio albums, five EP's and one live record with#####. At the same time Sergey utilizes his guitar playing in some different projects, such as B.A.G., withwhom he shared the stage with Black Sabbath, Scorpions and Deep Purple shows in Moscow at Olimpiyskiy stadium; Rock And Opera project in which soloists of Bolshoi Theater sings famous arias in rock arrangement; working with iLike band; briefly played with Russian rap artist Loc-Doc and some other artists. He is also a studio session musician.Since 2013 Sergey is a part of Pop-Music YouTube channel as guitars and guitar equipment demonstrator.