Jim Carrey becomes grandpa at 48

Jim Carrey became a first time grandpa, announcing the happy news to his Twitter followers in a celebratory tweet.

Jackson Riley Santana, My Grandson, Born today! This is what 7lbs.11oz. of Calfornia dynomite looks like! %^>http://twitpic.com/15liwi

Carrey’s daughter Jane, from his first marriage to wife Melissa Womer, gave birth to baby Jackson this weekend in Los Angeles. Jane is a musician, and spoke in a recent interview about impending motherhood:

Jane is a singer/songwriter, while her husband goes by the stage name Nitro with his rock band Blood Money.

She said in a recent interview she hoped to be able to balance motherhood with her musical career.

She said: ‘I’ve always wanted to be a mother and I’ve always wanted to do music, so to have the two together, it’s just awesome. It’s a dream come true.’

Jim Carrey will make his next silver screen appearance with Ewan McGregor in the film I Love You Phillip Morris.