Simon Cowell is yet to comment on his impending fatherhood.

The music mogul is reported to be expecting his first child with his married lover Lauren Silverman, who is allegedly 10 weeks pregnant, but Simon has yet to make a public statement about the claim.

The world was rocked by the revelation the renowned bachelor was to become a first-time dad at the age of 53, especially since his affair with 36-year-old socialite Lauren had been a secret.

It has now emerged her real estate entrepreneur husband, Andrew Silverman, filed for divorce on July 15, citing adultery as the reason for him ending the marriage.

In spite of rumours that Andrew and Lauren's union was on the rocks, friends insist he was completely blind-sided to discover his wife's infidelity with family friend Simon, and had even upgraded her wedding ring in recent weeks.

Alexander Silverman, Andrew's brother, told the New York Post newspaper: ''It is an unbelievable story of betrayal. It is a sad story and a tragic story.''

While the 'X Factor' boss hasn't commented on the situation, with his representatives describing it as a ''sensitive issue'', his mother revealed she was thrilled about becoming a grandmother.

Julie, 87, enthused: ''I've not heard anything officially. But if it's true then I'm absolutely delighted. It's wonderful! He'll make a fantastic father. He'll be great.''

Simon was looking stony-faced as he left the television studios in Los Angeles after filming 'The X Factor' USA on Wednesday (31.07.13) night. He is thought to have jetted off to Miami to speak to Lauren's parents.

Simon met Lauren and Andrew on holiday seven years ago at the upmarket Sandy Lane resort in Barbados, and the trio regularly enjoy group vacations together.