When did the pop-music band become a worldwide phenomenonĐoạn văn34/50When did the pop-music band become a worldwide phenomenon? When they became more than recording artists, branching out into film and political activism. They achieved an iconic status beyond mere celebrity.After The Ed Sullivan Show in the United States, on February 9th, 1964.After Stuart Sutcliffe left the band.Giải thíchĐáp án đúng là: C