The Saturdays singer Frankie Bridge, 26, gave birth to a boy at four minutes past midnight this morning.
Already parents to a 21-month-old son named Parker, her footballer husband Wayne, 35, was again by her side this time.
And the duo have already revealed the name of the new arrival: Carter.
Ms Bridge is evidently feeling well and happy too: she's already back on social media – and this morning took to Twitter to say, "our gorgeous baby boy Carter Bridge was born this morning.
Our gorgeous baby boy Carter Bridge was born this morning. He is absolutely perfect – Parker is so excited to be a big brother!
— Francesca Bridge (@FrankieBridge) August 15, 2015
"He is absolutely perfect – Parker is so excited to be a big brother!"
Former professional footballer Wayne, who retired from the game last summer, and Frankie married in July of last year.
Unusually for pop-star/footballer nuptials, the couple kept their Big Day completely private. In fact, it was three months before snaps of their wedding emerged – via her Instagram account.
In a handful of posts, she described the ceremony and celebration, which was held at the lavish Woburn Abbey in Bedfordshire, as "amazing," and made "even better," by the presence of their son.
They dated for four years before tying the knot.