Frenreisz first studied piano , and then learned to play the clarinet , saxophone , and bass . He was , from 1965 to 1971 , part of the band to Metró . The most famous song he wrote while in the band was '' Citromízű banán '' . He played a significant role in getting the Metró through the end of the sixties , and being part of the era of modern musical trends of experimenting . In 1971 , he was a founding member of the band Locomotiv GT , where he was the bassist , brass player , and the lead singer . He wrote the band 's first hits ( Boldog vagyok , Érints meg ) , and in connection with one of his songs was the first international calling of the band . In January 1973 he left Locomotiv GT , and not shortly after he founded the band Skorpió . The band carried over Locomotiv GT 's progressive sound for their first album " A rohanás " ( 1974 ) , but soon after they switched to a more radio-friendly hard rock sound . They had many hit songs , like " Így szólt hozzám a dédapám " ( from " A rohanás " ) and later , " Azt beszéli már az egész város " ( 1985 ) . He was the frontman and the leader of the band . The band is still active with some interruptions . He was the Double-bass player of the Year in 1974 and 1981 . His half brother was actor Zoltán Latinovits ( 1931 – 1976 ) and his brother was actor István Bujtor ( 1942 – 2009 ) . His maternal grandfather was restaurateur Károly Gundel , and Gundel 's father was János Gundel . He was a judge on the 2016 edition of A Dal , the Hungarian national selection for the Eurovision Song Contest 2016 , and was also part of the Hungarian national jury for the jury voting . He was again a judge on A Dal for the 2017 edition and continued to do so for the 2018 edition
Eurovision Song Contest 2016
Eurovision Song Contest 2016
Károly Frenreisz