Having been Queen’s guitarist for over half a century, Sir Brian May has had monumental success.

Yet the incredibly down-to-earth rock star doesn’t see himself as a celebrity but as a musician who’s also an astrophysicist, stereoscopy enthusiast and animal rights campaigner.

With so many interests and causes, the 77-year-old is involved in many projects simultaneously, including mentoring younger artists like X Factor finalist Talia Dean.

The pair have regularly collaborated over the…