Congratulations to Cat Deeley and her husband, Patrick Kielty on the birth of their baby boy.

The couple's first child was welcomed into the world last week, but Cat waited until today to share the news to the world. 

The blonde beauty took to Twitter and said, "Beyond delighted to announce the birth of our baby boy last week. 

"All doing well & we couldn't be happier… 3 really is the magic number!"

The pair tied the knot back in 2012, and announced they were expecting a baby back in September, after three years of marriage. 

She also took to Twitter to tell the public she was pregnant, saying, "Exciting news… Paddy and I are so happy to be expecting our first child in the spring… Lucky us."

With Patrick adding, "Well the cat's truly out of the bag! The news has been released. @catdeeley is pregnant! Congratulations sweetheart x."