The 46-year-old actress posted a photo of Michael, 71, kissing her on the side of her head on her Instagram account and gave it a heartwarming caption.
“Happy Anniversary dearest Michael! Loving our life together, here’s to the next 15!” Catherine wrote. She also added a heart emoji.
Catherine and Michael tied the knot back in 2000 and have gone through their ups and downs over the years, but they look so happy together these days!