- His first notable TV appearance was in the Die Rudi Carrell Show (1965) where he appeared as one of many amateurs impersonating famous singers. He sang a Dean Martin song.
- He lives with his family on the Lake Constance, Germany.
- Has two sons with wife Tülin, Aaron Keller and Joshua Keller.
- Got the 2nd Place in the 6th season of The Masked Singer Germany (2019) as Thorny Devil.
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