BABY JOY! Piers Morgan's wife Celia Walden is 4 months pregnant

Piers Morgan and Celia Walden are now based in America, where Piers fronts his own chat show

Piers Morgan and Celia Walden are expecting their first child together.

The former Britain's Got Talent judge, who has 3 sons from a previous marriage, confirmed the happy news today on Twitter.

'Morning (LA time...) everyone. This is true,' Piers, 46, wrote.

With Lord Alan Sugar quickly offering himself up as Godfather, Piers replied in jest: 'Only if Colonel Gadhafi is not available.'

Piers and novelist Celia, 34 - daughter of former Conservative MP George Walden - married in Oxfordshire last June after meeting on a photo shoot.

'Looking forward to having a new brother/ sister!' Spencer Morgan, 18, Piers' eldest child from his marriage to Marion Shalloe, Tweeted today.

Piers is also dad to Stanley, 14, and Albert (Bertie), 11.