Simon Cowell was left to take care of his son Eric on his own for the first time when Lauren Silverman went to visit family in New York, leaving him to look after their baby alone.
The media mogul - whose girlfriend Lauren Silverman gave birth to Eric in February - was "left alone" with his baby when she visited family in New York, and it is said he coped "really well".
A source told the Sunday Mirror newspaper:
"Simon was a bit nervous about being left alone with Eric at first but in reality he has nannies to help, so it's not been too bad.
"He's actually risen to the challenge very well. When Eric has a tantrum he finds it very amusing - it sort of reminds him of being in the ['Britain's Got Talent'] judging panel."
Simon is a first-time father but he's settling into his new role despite having "never even held a baby before".
His friend and former girlfriend Terri Seymour recently said: "He's great actually. I mean he hasn't changed his lifestyle because Simon wouldn't.
"But he's very good. He'd never even held a baby before, so he was like, 'How do you hold a baby?'
"You have to remind him every now and then about the head... But he's really good and he loves it."