Chad Michael Murray and Sarah Roemer welcome baby girl

Chad Michael Murray and wife Sarah Roemer have welcomed a baby girl.

The Hollywood couple are now parents to a daughter, expanding their brood from one bundle of joy, to two!

The One Tree Hill star confirmed the wonderful news on Instagram, posting a touching picture of his little girl's finger wrapped tightly around his.

Taking to social media to tell his fans, family and friends, Chad shared the heart-warming photo with his 737k followers.

Having not released the name of his new baby, or even of his one-year-old son, Chad referred to his daughter as 'little girl', telling her he would 'never let go'.

The picture, which shows some adorably tiny fingers holding on to Chad, was accompanied by a lengthy caption praising the 'two incredible women in my life'.

The dad-of-two wrote, 'Don't worry little girl you can hold on as tight as you want for as long as you want, I'm already yours & I'll never let go😚👶😌👨 👩 👧 👦 I've now two incredible women in my life. My son & I are two lucky guys. @rooeemer 😎❤️'

Social media users were quick to congratulate the 35-year-old star, commenting on his post with messages of 'happiness' and 'love'.

One Instagram follower wrote, 'Congrats Chad and Sarah on the arrival of your precious baby girl ❤ sending lots of love in your way!!'.

Another said, 'Congratulations for this little princess ☺️👑, I wish her much happiness !!! She really lucky to have you.❤✨'.

Chad and Sarah have been married since 2015 and also share a one-year-old son.

The couple confirmed the sweet news that they were expecting their second child back in November to People magazine, and have since shared plenty of adorable pictures of Sarah's bump.

Chad shared this lovely photo of Sarah during her pregnancy, telling followers 'she always glows' and saying 'it ain't Valentines but who needs an excuse to proclaim their love.'

Speaking previously to E! News about becoming a dad for the second time, Chad said, 'It's incredible. I'm shaking in my boots. I did one - awesome. Now I've got it down to the science.

'Me and my boy, we're good! We've got wrestle play time. He loves beating on dad at night.

'We know his shows, we know what he likes, what he doesn't like. And now it's a girl, and I have no idea what to expect.'