Elvis Presley performs Don't Be Cruel on The Ed Sullivan Show
It was 1956 when Elvis Presley released his hit song 'Don't Be Cruel'. It had a five-week run at No.1 on the US charts, and eventually went on to become Elvis Presley's biggest selling single.
By the time it was 1961, the sales of the song had totaled over six million.
Watch him perform the song live on The Ed Sullivan Show in 1956.