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The duration of Paul Di'Anno's tenure as Iron Maiden's lead vocalist spanned three years, leaving an indelible mark on the band's musical trajectory. Starting in 1978, his powerful vocals and charismatic stage presence propelled Iron Maiden to the forefront of the New Wave of British Heavy Metal movement. However, creative differences led to his departure in 1981, paving the way for Bruce Dickinson to join as the new lead singer.