Cat Deeley is a new mom!

The 38-year-old TV star took to Twitter on Tuesday, Jan. 19 to announce she and her husband, Patrick Kielty, welcomed their first child, a baby boy, last week.

"Beyond delighted to announce the birth of our baby boy last week. All doing well and we couldn't be happier… three really is the magic number!" Cat wrote on the micro-blogging site. The baby's name and exact birthdate have not yet been revealed.

The So You Think You Can Dance host and Patrick, 44, first announced they were expecting in September 2015. "Exciting news… Paddy and I are so happy to be expecting our first child in the Spring… Lucky us," Cat wrote on Twitter.

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The couple began dating in early 2012 and married in September 2012 in Rome, Italy.

Congrats to Cat and Patrick on their new addition!