Jim Carrey is a Grandpa!

Jim Carrey is officially a grandfather! His 22-year-old daughter, Jane, welcomed a baby boy in Los Angeles Friday.

Jane and husband Alex Santana welcomed their first child, son Jackson Riley Santana, at 12:28 a.m. Friday in Los Angeles, his rep confirmed. He weighed in at 7 lbs., 11 oz, and measured 20 inches long.

Shortly after the birth Jim took to his Twitter page to share the good news with his fans and share an adorable photo of Jackson.

He tweeted, "Jackson Riley Santana, My Grandson, Born today! This is what 7lbs.11oz. of Calfornia dynomite looks like!"

Congrats to the entire family!