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​Iron Maiden singer Bruce Dickinson treated for cancer

Bruce Dickinson, singer of heavy metal band Iron Maiden,  on Oct. 11, 2013, in Medellin, Antioquia department in Colombia.

RAUL ARBOLEDA/AFP/Getty Images

Iron Maiden says singer Bruce Dickinson has been treated for cancer of the tongue, but hopes to be back to full fitness soon.

A statement posted Thursday on the band's official website says a cancerous tumor was discovered during a check-up in December, and Dickinson has completed a seven-week course of chemotherapy and radiotherapy.

It says the prognosis is "extremely good," and doctors expect Dickinson to make a full recovery, "with the all-clear envisaged by late May."

Dickinson, who is 56, joined the British metal megastars in the early 1980s, and is also a commercial airline pilot. Iron Maiden's hits include "Run to the Hills" and "The Number of the Beast."