The actor - who played Carlton in the Will Smith comedy series - scooped the Mirrorball Trophy on last night's series finale, which aired in the US.
Woohoo! Congrats to Alfonso!
Alfonso - who appeared on last year's I'm A Celebrity - was teamed with pro dancer Witney Carson and seemed rather overwhelmed with his win: "I cannot believe this! I don't even know what to say! These are happy tears!"
It was a rocky road to victory for Alfonso who sustained a nasty groin injury earlier in the season, leading to fears he may have to quit the dance competition. His injury came after he showcased his famous Carlton Dance on the show, giving viewers a wave of Fresh Prince of Bel-Air nostalgia. Aww.
But it was also a very exciting road for Alfonso...
Not only did he emerge a winner, but he used Dancing With The Stars' live performance show earlier this series to announce the happy news that he and wife Angela are expecting their second child!
While giving a shout-out to their son on his first birthday, proud dad Alfonso, 43, surprised the audience by announcing: "As a wonderful present, my wife and I decided to get him a brother or sister. We're having a baby! I wanted to announce it here. I wanted to say thank you to all the fans and to say I love my wife."
Alfonso also has a daughter from a previous relationship.
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