Which rock musician received a PhD in astrophysics?

Brian Harold May (born 19 July 1947) is an English musician, singer, songwriter and astrophysicist, best known as the lead guitarist of the rock band Queen.

May was a co-founder of Queen with lead singer Freddie Mercury and drummer Roger Taylor (having previously performed with Taylor in the band Smile).

Within five years of their formation in 1970, Queen had become established as one of the biggest rock bands in Britain with the album A Night at the Opera and its single "Bohemian Rhapsody". As a member of Queen, May became regarded as a virtuoso musician with a distinctive sound created through his layered guitar work (Brian uses a home-built electric guitar, called the Red Special).

May received a PhD in astrophysics from Imperial College London in 2007 and was Chancellor of Liverpool John Moores University from 2008 to 2013. He was a "science team collaborator" with NASA's New Horizons Pluto mission. He is also a co-founder of the awareness campaign, Asteroid Day. May was born in Hampton, London, and attended the local Hampton Grammar School, then a voluntary aided school (now independent and known as Hampton School). At Hampton Grammar School, he attained ten GCE Ordinary Levels and three A-Levels (Physics, Mathematics and Applied Mathematics). He studied Mathematics and Physics at Imperial College London, graduating with a BSc. in Physics with honors.