Lady Sings the Blues is a song.
Many early rock and roll songs are based on blues: "That's All Right Mama", "Johnny B
 The early African American rock musicians retained the sexual themes and innuendos of blues music: "Got a gal named Sue, knows just what to do" ("Tutti Frutti", Little Richard) or "See the girl with the red dress on, She can do the Birdland all night long" ("What'd I Say", Ray Charles)

