Catherine Zeta-Jones wishes husband Michael Douglas on 21st wedding anniversary

Hollywood star couple, actors Michael Douglas and Catherine Zeta-Jones, marked their 21st wedding anniversary on Thursday. Celebrating the joy of togetherness for more than two decades now, the couple penned down heartfelt emotional tributes for each other on social media.

The Legend of Zorro famed actress, 52, took to her Instagram handle on Friday and shared a touching tribute to commemorate their latest milestone. Sharing a black-and-white photo of her and the Basic Instinct actor with their arms around each other’s backs, she wrote, “Happy Anniversary Michael. For 21 years you have had my back! For over 21 years we had had our love. Love you sweetheart.”

The couple tied the knot at the Plaza Hotel in New York City just five months after Douglas finalized his divorce from first wife, Diandra Luker.

The Game actor also gushed on his Instagram with a sweet video. He captioned it, "Happy anniversary my darling Catherine! I love you so much." The video showed numerous photographs portraying the couple's relationship through the years, starting with footage from their November 2000 wedding.

Catherine and Douglas share 21-year-old son Dylan and 18-year-old daughter Carys. Douglas is also dad to 42-year-old son Cameron from his marriage to Luker.