[1] Gündüz lived in New York City until the early 1980s as John Gundez, where he formed "Zacharia", a three-piece rock band playing his original material consisted of guitarist Harry Zaverdas who played bass, various drummers during its existence.
John Gundez auditioned and was selected along with Harry Zaverdas to portray/perform as Jimi Hendrix, on drums was Robert Gottfried http://robthedrummer.com/ they sold out four nights in New York City at The Bottom Line night club "Jimi and Janis Together Again" show which toured as far as Chicago's largest indoor amusement park.
In Turkey, he formed rock bands including Ambulans, Delikanlı, Affetmez, Çapkınlar, Hard Rakı.
He finished the sessions for his first album Anasının Gözü Cin Gibi in 1989, released three years later in 1992.
Gündüz released his second album Bir Sevgi Eseri / "A Work Of Love" which consisted of Turkish language versions of blues singles in 1998.