Jim Carrey Becomes a Grandfather!

Jim Carrey has taken on the role of a lifetime: the role of "Grandpa".

Jim's daughter, Jane Carrey, has given birth to a baby boy. Son Jackson Riley Santana was born at 12:28 a.m. Friday, Feb. 26 in Los Angeles. Jackson weighed 7 lbs., 11 oz. and measured 20 inches long.

Jane's husband, Alex Santana, is the lead singer of the rock group Blood Money.