Simon Cowell and his girlfriend Lauren Silverman have welcomed their new baby boy into the world - on Valentine's Day.

He was named Eric, after Cowell's father, and weighed 6lbs 7oz.

The music mogul, 54, spoke of his joy at the birth on Twitter, saying: "Very happy to say Eric was born at 17.45pm. Healthy and handsome.

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"Lauren in great shape. Thanks for all of your kind messages. Named after my dad."

The X Factor judge had jetted over to New York and was by his partner's side as she gave birth.