He was born on December 20, 1977, in Ankara, Turkey, to Ülkü (Yulku) Kabadayı and his wife Müjde.
Kerem Ben Zimra | Yeshivat Kerem B'Yavneh | Kerem Yılmazer |
Mor ve Ötesi was formed in 1995 with the line-up of Kerem Kabadayı (drums), Harun Tekin (vocals & guitar), Derin Esmer (vocals & guitar) and Alper Tekin (bass), who were then students at the Deutsche Schule Istanbul.