 In 1967 he recorded ""Vuelvo a Granada", "El río", "Contra el cristal", "El cartel", and "Mira hacia ti"".It was in 1970 that he came to be known as a superstar in Spain.His song "Himno de la alegría" (Hymn of Joy) was an extract of the last movement of the ninth symphony of Beethoven and appeared at the height of what was known as symphonic rock.