Simon Cowell thinks being a dad is "easy".

Lauren Silverman and Simon Cowell

Lauren Silverman and Simon Cowell

The 'X Factor' judge - who has 12-month-old Eric with partner Lauren Silverman - has admitted despite being nervous at the start, he has settled into parental duties well.

He said: "I love being a dad. It's been easy and I can't believe it's a year already. It's gone by, like, snap, but he's a fantastic little boy...

"I had no idea what it was going to feel like to be a dad and I was always nervous about babies. I didn't know what to do with them. But actually, when you see someone day by day becoming, you know, more smart and doing different things and recognising you and now talking, I mean...it's an incredible feeling."

The 55-year-old media mogul also joked that Eric - who turned one today (14.02.15) - organised his own birthday party.

He shared: "Eric's having his own birthday party this year... He has given me his own invitation list and we've got about 100 people coming. In fact, he's organised most of it himself."

And the little one is so similar to Simon that he even shares his father's interest in music.

He told E! News: "He does actually love music. He is addicted to 'The Jungle Book'. I have now heard 'Bare Necessities' and 'I Want to Be Like You' probably 1,000 times this year."