Kelly Osbourne has revealed the identity of her favourite X Factor judge – and it’s not her mother Sharon.

The 22-year-old said Simon Cowell was “jealous” and “stupid” to get rid of her favoured judge, Louis Walsh.

In the latest issue of Star magazine, Kelly said: “I love Louis. Even though my mum is on there, he’s my favourite.

“He’s like an uncle to me. He’s my neighbour and we go for lunch together, he’s f****** wicked.

“He’s very smart and people portray him as a bitch, but he’s a very, very successful man in the music industry and knows what he’s talking about. Simon was stupid to fire him.”

She added: “Simon’s a bit jealous of Louis because Louis knows what he’s talking about – not that Simon doesn’t – and sometimes Louis does get one up on him. Simon doesn’t like that.”

But she said Simon should get “more credit” for demonstrating he was a “strong person” by bringing Louis back.

Kelly denied there were any problems between Sharon and new judge Dannii Minogue.

She said: “My mum’s really happy there’s another girl there.”

And she joked of her mother’s plastic surgery: “Sometimes she has gone too far with the Restylane and Botox, and ended up looking extremely surprised.”