Richard Marx's 1991 release, Rush Street, is a varied album that was billed as "the dark side of Richard Marx," and was also his last true rock & roll album (subsequent releases found him venturing almost exclusively into the adult contemporary domain). Rush Street explores different musical territories, with almost each song emerging as a cautionary tale in some form or another. The album kicks off to a rocking start with the bluesy "Playing With Fire" and the harmonica-enhanced "Love Unemotional."