Despite the music mogul saying his "gut feeling" was to keep the panel the same this year, speculation has been rife with potential new judges, including Estelle.
The American Girl singer told DigitalSpy that, while she hadn't been approached about the show officially yet, she'd jump at the opportunity to take part.
"If Simon calls I will let you know!" she told the website. "Hell yeah I would do it - absolutely.
"I've been on X Factor a couple of times - it's hilarious to watch. Just to hear Louis shade people, it's amazing. It's one of the better shows on TV."
But in a slight dig at the show, Estelle claimed that the BBC's new series The Voice was a "more credible" approach to the talent format.
She explained: "The Voice in the US is a pretty good show. They're not all completely brand new people - just great singers. I think it's a more credible approach to finding a star."