DONNY OSMOND isn't just a cute grandpa, he's also devoted to his late mom, OLIVE, who sadly passed away on Mother's Day 2004. We joined him as he got emotional talking about his favorite memories of mom and prepared for his upcoming TV special!

On Sunday, May 11, Donny and MARIE are hosting "Teleflora presents America's Favorite Mom," an NBC prime-time television event, honoring the nation's best mothers, based on 15,000 online nominations collected at AmericasFavoriteMom.com and voted on by you starting next Monday, May 5, at www.nbc.com.

The five mothers with the greatest percentage of votes get to take part in the TV special, and Donny, Marie and Teleflora will present the grand prize winner with $250,000, an America's Favorite Mom diamond-encrusted pendant and a year's worth of Teleflora flower arrangements. So don't forget to vote!