The two appeared in good spirits as they were photographed leaving Bouchon, a traditional French bistro, before heading to AllSaints to shop. Diaz, 44, was wearing a black-and-white striped top with cuffed jeans and studded sandals, laying her head on Madden's shoulders. Her husband, 38, was also dressed casual for the outing, sporting a plaid button-down, wide-legged jeans, comfy kicks and a fitted hat.
Last month, Diaz was a guest on The Ellen DeGeneres Show, where she couldn't stop gushing over the Good Charlotte rocker, and the keys to a successful marriage.
"I do think that marriage, when you can grow with someone, it's very important," she explained. "Someone asked me, 'What's your favorite thing about being married?' and I said, 'I just learned so much about myself. I didn't know these things. I would have never known them if I didn't have my husband to help me.'"
"And they said, 'What's the worst thing about being married?'" she continued. "It's like, 'Well, I learned all these things about myself that I wish I didn't know. And I wouldn't have learned them if I didn't get married.' So it's like this double-edged sword."