MUSIC WITH SOUL

Produced by OZ Management

Oskar “Osi” Zakrzewski is a keyboardist and producer with a deep-rooted passion for jazz, soul, and funk. After years of performing in bands and musicals, he has evolved into a versatile music maker with a strong focus on studio production. His project, Osi & the Cats, brings together a rotating cast of outstanding musicians to record live in the studio, transforming Osi’s raw demos into dynamic, full-fledged tracks.

Osi has a wide network of top-tier musicians across genres and moves effortlessly between the roles of producer, bandleader, and creative engine. His boundless energy, infectious enthusiasm, and deep musicality make him a driving force in every project he leads.

OZ MANAGEMENT

OZ Management offers artist management, music production, release support, and music marketing. With a strong focus on quality, creativity, and collaboration, we help artists bring their music to life—both in the studio and beyond.

🎛️ Production

🎙️ Artist Management

🎶 Release Strategy

📢 Music Marketing

OSI & THE CATS

Osi & the Cats is the brainchild producer Oskar “Osi” Zakrzewski. Each track begins with a raw demo — chords, melody, and vibe — and comes to life in the studio through spontaneous collaboration with a rotating lineup of exceptional musicians, “the Cats.” The result is a fresh blend of soul, funk, and jazz with a live, organic feel. No two sessions are the same, and that’s the magic: groove-driven tracks shaped by the unique chemistry of the moment. Osi & the Cats is not just a project — it’s a creative playground for fearless musical exploration.

This first track was co-produced by Jeroen Ubels from Ubels Services.

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PAST PROJECTS

CAPITAL S

Keyboardist, producer, and tour manager for this energetic soul band.

A high-energy soul band with tight grooves, big brass, and an even bigger heart. Osi played keys, produced studio recordings, and toured as the band’s tour manager, helping shape their signature retro-funk sound from the inside out.

The Soulband band has now rebranded as Flashback Fever.

DR JUSTICE &
THE SMOOTH OPERATORS

Artist Manager

A disco-funk collective known for over-the-top live shows, flamboyant costumes, and infectious dancefloor bangers. As artist manager, Osi helped steer the chaos, connecting the band with opportunities and keeping the funk flowing.

I.E. Management

Digital Marketing Intern

As an intern for one of the leading music management organisations in the world I learned the cornerstones of digital marketing for artists. I.E. Management is most known for managing the one and only Robbie Williams.

My role in this company was small, but the lessons I learned stick with me to this day.

SOUNDSCAPING Studio Angelineau

Music producer

In this project we combined architecture, design and music. Together with Studio Angelineau we created an phisical experience for start-ups that showed them the atmosphere of their new office.

As a music producer I made eight different soundscapes that strengthened the moods of the eight different spaces that are going to be re-designed.