From his initials - M and M (M 'n' M)
His name is Marshall Mathers. His initials are M and M.
Mars & Murrie
Mickey and Minnie Mouse
Isle of Man
Marshell mathers. (initials are M and M...) which he spells eminem (M an M)
It comes from his initials. his name is Marshall Bruce Mathers . and Marshall Mathers --> M&M, but that it doesn't give a conflict between the name from him and the chocolate M&M's (for avoid problems with the producter), he change it to Eminem --> his initials "M & M" (pronounced: "M and M", "M 'n' M", "Em(i)nem").