Robbie Williams and Ayda Field welcome 'very special secret' baby girl Coco

Robbie Williams and Ayda Field have welcomed a 'very special secret' baby girl via an 'incredible' surrogate.

The X Factor co-judges announced the arrival of Colette Josephine Williams, to be known as Coco, via Ayda's Instagram page on Friday morning, while detailing their 'long and difficult' path to a third child in a heartfelt post.

Sharing a black and white image of the family's hands in one frame, Ayda, 39, and Robbie, 44 - who are parents to daughter Teddy, five, and son Charlie, three - said they will be 'eternally grateful' to their surrogate. 

Ayda wrote: 'I spy with my little eye an extra little hand. So we have been keeping a very special secret! We are delighted to share with you that we have had a baby girl…. welcome to the world Colette (Coco) Josephine Williams!! 

'It has been a very long and difficult path to get here, which is why we have kept it on the down low. 

'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.' 

She continued: 'We are over the moon to have this beautiful baby girl in our lives and so blessed that we live in a world which makes this possible.

'As with Teddy and Charlie, we ask that you respect Coco’s privacy and allow us to grow into our new team of 5!'

Mailonline