Mick Mars: Pain, Power, and the Guitar Genius Who Defined Mötley Crüe’s Sound eBook: Marwood, Leif C.: : Books Mick Mars is the unsung architect of Mötley Crüe’s ferocious sound, a guitarist whose riffs forged the backbone of one of rock’s most notorious bands. While his bandmates lived in the spotlight of chaos and scandal, Mars battled a crippling disease in silence.