The veteran rocker went public with his health scare in February (15), revealing doctors had found a tumour on his tongue and he subsequently underwent chemotherapy and radiotherapy treatment.

DICkinson recently completed the seven-week treatment course, and he made a return to the spotlight this week (beg23Mar15) to visit the Hybrid Air Vehicles (HAV) headquarters in Bedfordshire, England.

The singer is among the investors in HAV, which aims to create helium-filled airships to carry cargo around the world and stay in the sky for up to three weeks at a time.

DICkinson's public appearance comes just days after Iron Maiden released a statement revealing doctors are confident the star will make a full recovery. It reads, "Over the last few days, Bruce has been to see his specialists, and following examinations... we're delighted to update everyone that the situation remains extremely optimistic for a full recovery."