Michael Geoffrey Ralphs is an English retired musician, vocalist and songwriter, who was a founding member of rock bands Mott the Hoople and Bad Company.

Mott the Hoople were an English rock band formed in Herefordshire. Originally named the Doc Thomas Group, the band changed their name after signing with Island Records in 1969. The band released albums at the beginning of the 1970s but failed to find any success. On the verge of breaking up, the band were encouraged by David Bowie to stay together. Bowie wrote their glam-style signature song "All the Young Dudes" for them, which became their first hit in 1972. Bowie subsequently produced their album of the same name, which added to their success.