O.S.T.R.
Hip-Hop · PL · Active since 1980

O.S.T.R.

Sophisticated jazz-rap with a gritty urban heart. Classically trained violin meets dusty MPC beats and sharp social commentary for late-night city walks.

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Intro

O.S.T.R. sounds like the intersection of a smoky jazz club and a rainy Eastern European street corner. His music is defined by a warm, analog soul, heavily reliant on the crackle of sampled vinyl and the organic swing of jazz percussion. Because he is a classically trained violinist, his beats possess a melodic sophistication rarely found in boom-bap, often weaving in strings and complex harmonic structures that feel both ancient and immediate.

What truly sets him apart is the sheer technicality of his delivery and his refusal to simplify his message. His flow is relentless and highly improvisational, reflecting his status as a freestyle legend. There is a palpable sense of integrity in his work; he avoids commercial polish in favor of a raw, honest sound that captures the frustrations and hopes of the Polish underground. It is music that demands your attention but rewards you with deep, atmospheric textures.

Start with 'Jazzurekcja' to hear the perfect marriage of his musical education and hip-hop sensibilities. It is a landmark album that defines the jazz-rap aesthetic in Poland. From there, move to 'HollyŁódź' for a more personal, localized look at his roots, or 'Tabasko' for a more aggressive, high-energy experience.

Adam Andrzej Ostrowski (Polish pronunciation: [ˈadam ɔsˈtrɔfskʲi], born 15 May 1980 in Łódź, Poland), better known as O.S.T.R., is a Polish rapper, musician, audio engineer and record producer, famous for his freestyle rap skills, ambitious lyrics and unique beats. He graduated from the Academy of Music in Łódź, violin class. He is one of the few Polish rappers who have received professional musical education. He has collaborated with American rappers such as Evidence, El Da Sensei, Craig G, Keith Murray, Jeru The Damaja, Lil' Dap, Sadat X and Canadian producer Marco Polo. He has also collaborated with many Polish artists, including jazz musicians Michał Urbaniak, AbradAb Hades, SOFA, Fokus, DJ Deszczu Strugi, DonGURALesko, Vienio i Pelson, Fu, Pezet, Sistars and Slums Attack. He is a member of bands such as Tabasko, Skill Mega, Killing Skills, Beat Brothers and musical project POE. He is also a former member of Obóz TA and LWC. In 2013, he shared the position of art director of Męskie Granie festival with alternative rock vocalist Kasia Nosowska.
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Our Catalog26 Albums · 2001 · 2025
Known ForWeighted across the artist's discography. Tap a trait for examples.
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