Alfonso Ribeiro did more than just dance his heart out on 'Dancing With the Stars' last night (Oct. 27) -- he also announced his wife's pregnancy!

"My son, it's his first birthday today, so I'm so happy that he's here with me. And as a wonderful present, my wife and I decided to get him another brother or sister," the 'Fresh Prince of Bel Air' star announced to an eruption of cheers from the audience. "We're having a baby!"

The baby will be the second child for Ribeiro and his wife Angela Unkrich, who already parents to one-year-old Alfonso Lincoln Ribeiro (named after daddy!) and the third overall for the actor, who is also dad to 12-year-old Siena, his daughter with his first wife, Robin Stapler.

We couldn't be happier for the proud papa, who was positively bursting with excitement in his announcement last night. Seriously, he's too cute for woods -- just check out the clip above!

Congratulations to the happy couple!