Katharine and David were on the Italian island of Capri Sunday as she showed off her engagement ring to family and friends over FaceTime. It's unclear exactly which day he proposed, but we imagine it was shortly before this pic was taken.
Katharine's rep, Leslie Sloan, confirmed the engagement.
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This will be the actress/singer's second marriage. Her music mogul fiance's got her beat by a mile ... it's his fifth. If you're checking his first dance card -- B.J. Cook, Rebecca Dyer, Linda Thompson, and Yolanda Hadid were the previous brides.