'Knocked Up' actress Katherine Heigl welcomes her third child
The couple announced her pregnancy last summer.
Katherine Heigl and her husband singer Josh Kelley have welcomed their third child together.
The baby boy, born on the 20th December, has been named Joshua Bishop Kelley Jr and is the couple's first biological child.
PEOPLE have reported the news as being confirmed by the couple's representative yesterday.
The couple announced the pregnancy last summer and Katherine has been sharing photos of her bump and scans on social media.
Last month Katherine's mum Nancy held a baby shower and the Grey's Anatomy star shared a photo of an extravagant white cake topped with an ornate pony.
38-year-old Katherine rose to fame in the late 90s playing the part of Isabel Evans in Roswell and later Izzie Stevens in Grey's Anatomy.
Katherine and Josh met on the set of Josh's music video for 'Only You' in 2005 and married in December 2007. The couple already have two adopted daughters, eight-year-old Naleigh and four-year-old Adalaide.