He was a contemporary of and worked with the famous Turkish musicians Cem Karaca, Erkin Koray, and Edip Akbayram.
He worked with several bands: Meteorlar (Meteors) (1966-1967), Silüetler (Silhouette) (1967), Moğollar (Mongols) (1967-1972), Barış Manço and Kurtalan Ekspres (Express) (1973-1974), Edip Akbayram and Dostlar (Friends) (1974) and Cem Karaca and Dervişan (Dervishes) (1975-1976).
Examples of this style include Turkish musicians such as Cem Karaca, Barış Manço, Erkin Koray, Fikret Kızılok, Cahit Oben, Selçuk Alagöz, Edip Akbayram alongside bands such as Moğollar, Silüetler, Kurtalan Ekspres, Grup Çığrışım, Grup Çağrışım, Mavi Işıklar, Apaşlar, Kaygısızlar, Haramiler, Modern Folk Üçlüsü and Kardaşlar.
Between 1972 and 1975, Özkan played Anatolian rock music with Barış Manço in his band "Kurtalan Ekspresi", in "TER" of Erkin Koray, "Dostlar" of Edip Akbayram, "Kardaşlar" of Seyhan Karabay and "Dadaşlar" of Ersen.