Happy birthday, Debbie. I love you," Donny wrote in the caption ... His sister, Marie Osmond, also broke her silence days ...

"Here are some of my personal pictures through the years with the birthday girl who captured my heart," Osmond wrote in an Instagram post. "Happy birthday, Debbie. I love you." Donny and Debbie ...

Hmm, we must have missed that episode. From left to right, Anson Williams, director Jerry Paris, Ron Howard and Donny Most discuss a scene from Happy Days, circa 1975. The Paramount Pictures lot ...

Donny shared a carousel of images of his wife at various moments during their decades-long romance, in honor of her birthday ...