Hugh Grant 'Thrilled' by Son's Birth
PHOTO: Actor Hugh Grant speaks during the news conference for the film "Cloud Atlas" during the 2012 Toronto International Film Festival in Toronto on Sept. 9, 2012.

(Image Credit: The Canadian Press, Aaron Vincent Elkaim/AP Photo)

Hugh Grant tweeted that he has become a father for the second time.

"Am thrilled my daughter now has a brother. Adore them both to an uncool degree. They have a fab mum," the actor posted on his Twitter account, @HackedOffHugh.

"To be crystal clear, I am the Daddy," he wrote in a separate tweet.

Grant's sometime girlfriend, Tinglan Hong, gave birth to their first child, a girl, in 2011.

"Everyone was right all these years, saying, 'Hugh, why don't you have some children? It changes your life.' And you're thinking, 'Oh, shut up,'" Grant, 52, told Ellen Degeneres last year.

"Now that I have [a child], it is life changing," he said.

In answer to some journos. Am thrilled my daughter now has a brother.Adore them both to an uncool degree. They have a fab mum.

- Hugh Grant (@HackedOffHugh) February 16, 2013

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