Robbie Williams and Ayda Field have welcomed their fourth child.
The former Take That star and his actress wife revealed they are parents to a baby boy via an 'incredible' surrogate, the same surrogate who gave birth to their daughter Coco.
The delighted couple have named their son Beau Benedict Enthoven Williams.
Loose Women presenter Ayda shared the surprise news by posting a picture of their children's feet, with an additional pair to show that they are now a family of six.
She wrote in a post on Instagram: "Spot the difference...On this Valentine's Day, we would like to celebrate love in the most awesome way... Beau Benedict Enthoven Williams."
The doting mum explained: "As with Coco, he is biologically ours, but born via our same incredible surrogate.
"We are so blessed to have our healthy son safely in our arms and are officially complete as a family."
The exciting announcement comes 17 months after the couple revealed they'd welcomed daughter Colette Josephine Williams, known as Coco, via a surrogate.
Pop star Robbie and Ayda are also parents to daughter Theodora Rose Williams, seven, and son Charlton Valentine Williams, five.
After Coco's birth Ayda told of the couple's difficulties in conceiving.
"It has been a very long and difficult path to get here, which is why we have kept it on the down low," she wrote in a previous post on Instagram.
"Family comes in all forms, and this little lady, who is biologically ours, was carried by an incredible surrogate mother, to whom we will be eternally grateful."
The former X Factor judges tied the knot at Robbie's Los Angeles home in August 2010.
.jpg?w=600)
