Demjén Ferenc "Rózsi" is the correct artist name. He was the founder of the Hungarian "Számum" band. Later he went to the "Dogs" band after he was the member of the
Liversing. in1968 he was the singer of the
Meteor (Hungarian) band, in 1969 he was the singer
Radics Béla's band
Sakk-Matt. In 1970 he was the member of
Tűzkerék.
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