Jim Carrey Becomes a Grandpa!

Just call him Grandpa Jim! Jim Carrey, 47, became a first-time grandfather this weekend, when his daughter gave birth to a bouncing baby boy.

Jane Carrey and her husband Alex Santana welcomed Jackson Riley Santana at 12:28 a.m. Friday in Los Angeles. The newest addition to the Carrey family tipped the scales at 7 lbs., 11 oz, and measured 20 inches long.

The proud new grandfather twittered about the baby's arrival and posted a pic of the little bundle of joy. "Jackson Riley Santana, My Grandson, Born today! This is what 7lbs.11oz. of Calfornia dynomite looks like!" Carrey wrote.

Congratulations to the family! Do you think the baby will get to call Carrey's girlfriend, Jenny McCarthy, "Granny"?

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What do you think of the name Jackson Riley Santana? Chime in below!

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