Cat Deeley Welcomes Her First Baby!

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Cat Deeley is a mom!

The 39-year-old British actress and TV host happily announced the exciting news via Twitter on Tuesday.

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"Beyond delighted to announce the birth of our baby boy last week," she wrote. "All doing well and we couldn't be happier... 3 really is the magic number!"

This marks the first child for Deeley and her husband, Northern Irish comedian Patrick Kielty, 44.

The couple wed in 2012 during a picturesque ceremony at St. Isidore's College chapel in Rome. Their nuptials came one decade after meeting on the BBC's Fame Academy, a musical competition show that aired in 2002 and 2003.

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They first announced the pregnancy in September.

Congrats to the whole family!