Giorgos Zareas began studying music as a teenager and chose the trombone as his main instrument from an early age. Among other ensembles, he has performed with the Athens Symphony Orchestra and the Athens Big Band. He has collaborated with many well-known artists in both live performances and recordings. His collaborations include prominent names from the jazz, funk, and Latin music scenes, as well as the Greek music scene. Alongside performing, he is also active as a composer and teacher.