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Jim Carrey Is a Grandpa!

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Jim Carrey is a grandpa!

His 22-year-old daughter, Jane, welcomed a baby boy in Los Angeles Friday, a rep for the actor confirms to

Jackson Riley Santana was born at 12:28 Friday morning and weighed in at 7 lbs., 11 oz. and is 20 inches long, the rep added.

Check out adorable shots of famous star babies

"Something beautiful is right around the corner! ;^)" Carrey, 47, posted on Twitter on Tuesday. Friday morning, he added, "right around the corner! ;^)"

Jane (Carrey's daughter with ex wife Melissa Womer) wed the baby's father, Alex Santana, who is in the band "Blood Money" and goes by the stage name "Nitro," in November. She fronts her own alternative rock band, The Jane Carrey Band.

Check out pics of Jim and Jenny and other star families

After announcing her pregnancy last July, Carrey told Us, "I'm very excited. Jane is going to be a great mom."

Jenny McCarthy, Carrey's girlfriend of five years, told Us earlier this month that she would make an "awesome grandma."

See what Jenny — and more stars! — look like in bikinis

"The world's best, is what I say," McCarthy, 37, joked to Us.

She said Jane has been calling her for advice.

"We have an awesome relationship. I consider her my daughter," McCarthy said.

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