Jessica Simpson will release her first country album, titled Do You Know?, on Sept. 9 on Columbia Nashville. She recorded the album in Nashville with producers Brett James and John Shanks. The title track was written for Simpson by Dolly Parton, who also harmonizes with Simpson on the song. "Every single song is a piece of my heart ... who I am," Simpson says. "I'm not what everybody thinks that I am. Believe it or not, I'm a simple country girl ... and this album will hopefully give people a sense of who Jessica is again."