Good news, X Factor fanatics: Season 2 of the best talent competition in all the land premieres this evening, September 12, 2012, on FOX.

Tune in at 8PM/7PMc to catch sassy new judges Britney Spears and Demi Lovato in action. Here are a few teasers as to what you can expect this season:

- Justin Bieber shows up! You better Beliebe it.
- Simon Cowell calls a contestant a “vile monster” — and in the premiere, nonetheless!
- Demi teams up with ex-boyfriend Joe Jonas’ brother, Nick, to mentor contestants.
- Simon Cowell mentors the groups!

Check out the promo below!

Credit: YouTube Photo: Watch Dramatic X Factor Season 2 Promo: Do These Contestants Have What It Takes? (VIDEO)