Pregnant celebrities: find out which stars are due to give birth next
Lauren Silverman and Simon Cowell
The new couple are expecting a baby later this year.
Simon, 54, and 36-year-old Lauren will become parents to a baby boy, the first child for the music mogul.
Their surprise news came following the end of Lauren's marriage to Simon's friend Andrew Silverman, with whom she has a seven-year-old-son.
Simon, who has called Lauren "a very special girl," has spoken about his excitement about this new chapter in his life.
"I'm proud to be a dad… It's something I hadn't thought of before," he said about the prospect of fatherhood. "But now I know I feel good about it."