Jim Carrey has become a grandfather aged 47, after his 22-year-old daughter gave birth to baby Jackson Riley Santana.
And no-one is more pleased than the Hollywood star himself, who posted a picture of the cute newborn on Twitter.
The accompanying message read: "Jackson Riley Santana, My Grandson, Born today! This is what 7lbs.11oz. of California dynamite looks like!"
Jane, a singer/songwriter delivered the new arrival at an LA hospital on Sunday
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