'X Factor' USA promo spotlights Britney Spears, Demi Lovato - watch

A new promo for The X Factor USA has debuted.

The video spotlights the show's two new judges, Britney Spears and Demi Lovato. The two singers discuss their experiences working on the Fox series and preview what's to come for season two.

['The X Factor' USA promo featuring Britney Spears and Demi Lovato (US users only):]



"So far everything has been so much fun for all of us," Spears says. "Everything is like a new experience for me, so it's a lot of fun and the talent has been amazing."

"The most fun about being on X Factor is seeing people that really wow you, and knowing that you saw them before they were going become stars," Lovato adds.

The X Factor USA is currently in the process of casting two hosts for the series, one male and one female. Contenders for the role include Stacy Keibler, Terrence J and Khloe Kardashian.

Bruce Jenner recently spoke out in favour of his step-daughter Kardashian, saying she would make a "great" host on The X Factor USA.

The X Factor USA premieres on September 12 and September 13 at 8/7c on Fox.