Singer Cheryl Cole and her partner and singer Liam Payne have announced the birth of their son after keeping it a secret for three days. Cole announced the news on her Instagram account on Saturday night by posting an image of Payne holding the baby to his chest, reports dailymail.co.uk. "My close friends and family know there are very few times when I'm left speechless... Wow. I'm incredibly happy to welcome our new baby boy into the world, it's a moment that I will never forget for the rest of my life and my favourite memory I have so far," Cole captioned the image. The birth of their son turned out to be more special as it happened just a few days before Mother's Day.