Jessica Simpson says she saw therapist amid gossip about her marriage

Jessica Simpson says the relentless gossip about her marriage to Nick Lachey drove her to visit a therapist.

"Yes I have," the singer-actress tells Teen People in its December-January issue, on newsstands Friday. "I respect knowledge of the psyche. I would be a therapist if I weren't an entertainer."

Jessica, 25, posed for the cover of the magazine with her sister, Ashlee. Both talk about the difficult challenges of the past year.

Jessica, who had a starring role in "The Dukes of Hazzard" movie this summer, has been the queen of the tabloids this year _ much of the coverage dissecting the marriage of the "Newlyweds" couple. The pair have denied persistent rumors of a split.

"Hopefully mine and Nick's story will continue for the rest of our lives, like what we vowed, through sickness and in health." Ashlee, 21, recently released her second album, "I Am Me," and it debuted at the top of the charts. But she has still had to live down her embarrassing lip-synch disaster on "Saturday Night Live" last year, AP reports.

"Yeah I messed up in front of everybody," she says. (Last month, Ashlee revisited the scene of her musical flub, performing on "SNL" _ really live, this time.) However, she adds: "I love to sing. It's a joy to me. I don't do it for anyone else _ I do it for me.

A.M.