Grzegorz Robert Kupczyk, born on 20 November 1958 in Poznań, is a Polish singer,
guitarist and producer. He began with acoustic guitar and bass before gaining
prominence as the vocalist of the metal band Turbo, contributing to releases
including Dorosłe dzieci and Last Warrior. In 1989, he co-founded CETI, which
became another major part of his recording career. His solo work includes 30 Lat
(2012), Memories II (2019), and Grzegorz Kupczyk (2024). In 2018, he recorded
the duet "Turbogrosik" with Krzysztof Krawczyk and joined Orkiestra Dorosłych
Dzieci as a vocalist in 2023. Kupcz...