The 50-year-old 'Straight Up' hitmaker's friendship with the talent show boss has been formed since working together on 'American Idol', reported Contactmusic.
"Believe it or not, Simon and I are friends. It's a warped kind of thing," she said.
Abdul said she is interested in how well the new panel of the reality show do without her.
"I'm looking forward to seeing how they do. When you have a long career such as Britney's, she knows what she's doing. I hope she has fun. Same thing with Demi. What's the best advice I can give them? Don't take mine, obviously," she added.