British rocker Paul Mario Day, best known as the original vocalist of Iron Maiden, has died at 69. The heavy metal musician died peacefully at his home in Australia Tuesday, his family said. While an official cause of death is unknown, the rocker had been battling cancer in recent years, Parade reports.

Paul Mario Day, who became the first singer of Iron Maiden in 1975, has died aged 69. No cause of death has been provided amid the vocalist's passing.