HONG KONG - The photo - showing four intertwined hands - says it all.
On April 18, actor-singer Aaron Kwok posted the picture, writing: "Today, I am very happy as it's a very special day. I would like to share good news.
"Chantelle (his daughter) now has a sister, our second treasure is healthy, and mummy worked hard.
"As of today, we will happily (be) a family of four."
Thanking his fans for their support and good wishes over the years, he added: "I am grateful."
He did not reveal the name of the second child.
Kwok, a Best Actor nominee at the recent Hong Kong Film Awards, is taking a hiatus from movie projects to spend more time with his family.
"As a single man, you go to work, come home and the next day, it's the same thing. Now, you get up in the morning, you have a family," he said of the new stability in his life.