Katherine Heigl and Josh Kelly welcome baby boy

So sweet!

Congratulations are in order for Hollywood couple Katherine Heigl and Josh Kelly, who've just welcomed a baby boy!

Actress Katherine Heigl, who has appeared in films such as 27 Dresses and The Ugly Truth, confirmed the happy news that she has given birth to her first baby.

The 38 year old already shares two adopted children with husband Josh, but this is the first time she has become a biological mother. A rep for Katherine and Josh confirmed to PEOPLE magazine that their little bundle of joy arrived on 20th December, just in time for Christmas.

The couple now have a son to add to their brood, whom they have named Joshua Bishop Kelly Jr. Joshua will be a little brother to eight-year-old Naleigh and Adalaide, four.

Katherine and Josh's eldest daughter was adopted from South Korea in 2009, while Adalaide was adopted domestically three years later.

A photo posted by on

'The Kelley clan is thrilled to announce that we are expecting a third addition to our family,' the couple originally told PEOPLE when news of Katherine's pregnancy broke.

'Naleigh and Adalaide could not be more excited to welcome their new sibling into the fold, and Josh and I are overflowing with joy and gratitude.

'This is an incredibly exciting time for us filled with hope, anticipation and hormones. Well, only I'm filled with hormones, but everyone in the family gets to enjoy them,' Katherine joked.

'We couldn't be more excited to be able to finally share this news with our fans, and are looking forward to continuing to share the journey with you all.'

News of Katherine's pregnancy was revealed last June when she wrote a blog on her website Heavenly Days, in which the blonde beauty commented on being an older mother.

'It was totally unexpected but thrilling none the less... The whole pregnancy thing is new to me but the thrill of having a baby is not.

'Seeing as I have never been pregnant and as my OB/GYN reminded me last year, I'm of advanced maternal age, I wasn't sure pregnancy was even in the cards for us. Turns out it was very much in the cards!'

Katherine and Josh, 36, have been married since 2007 and seem to be loving their growing family!

Congratulations to the new family of five!

GoodtoKnow

Trusted, informative, and empathetic – GoodToKnow is the ultimate online destination for mums. Established in 2007, our 15-year-strong archive of content includes more than 18,000 articles, 1,500 how-to videos, and 7,000 recipes.