The Fresh Prince Of Bel-Air star is one of ten famous faces who will enter the hostile Australian jungle on Sunday night (17 November) when the ITV show returns for a new series.
He tweeted a picture of his tiny tot on 11 November alongside the caption: "Enjoyed a long weekend with my wife @angiesue224 and my 2 wk old son Alfonso Jr."
Alfonso will be leaving wife Angela, 32, and their newborn son Alfonso Lincoln Ribeiro Jr by themselves as he tackles creepy crawlies, spiders and his claustrophobia.
The iconic TV star became a second-time father on 27 October when Angela gave birth to their first child together in Los Angeles.
He also has a daughter from a previous relationship.
Alfonso admits that it will be difficult to be separated from his family but they'll be waiting for him when he leaves the jungle – whenever that is.
Personally, we're hoping it's not until the very, very end so he has plenty of time to enthrall us with lots of Fresh Prince antidotes and, of course, do the Carlton Dance!
Alfonso seems pretty adamant he won't be getting jiggy until he exits ("There will be no dance until I am voted out") but we're hopeful there is at least one Fresh Prince celebrity fan in that jungle who can convince him to bust a move!
Check out the rest of the I'm A Celeb lineup below!