María de los Ángeles Felisa Santamaría Espinosa ( born August 2 , 1947 ) , professionally known as Massiel , is a Spanish pop singer . She won the Eurovision Song Contest 1968 with the song " La , la , la " , beating the British pop singer Cliff Richard 's " Congratulations "
Eurovision Song Contest 1968
Eurovision Song Contest 1968
Massiel