Jim Carrey becomes grandfather

Jim Carrey has become a grandfather at 47.

The actor's daughter Jane has given birth to her first child, a baby boy, with husband Alex Santana.

Her actual due date was Mar. 3, reports People magazine.

The Jane Carrey Band singer had said last year she would love to have a son.

She said: "I'm excited about it because I never really got along with girls growing up.

"I was a little afraid that if it was a girl that she would not like me, you know? So I'm very happy about the boy."

Meanwhile, Carrey believes her daughter will be a great mom.

He said in July: "Jane is going to be a great mom."