Britney Spears Channels Simon Cowell in New ‘X Factor’ Promo (VIDEO)

'X-Factor' Season 2
Watch all the tears in the promo for next season of 'X-Factor'
Brit's 'X Factor'!
Britney Spears will be a judge on the reality competition!
Britney Spears may describe her judging style as “subtle” in a brand-new X Factor promo, but it may be debatable to viewers. In this clip, released by Fox, the “Toxic” singer has a few harsh words for one X Factor hopeful.

“I want to know who let you on stage,” the 31-year-old pop star tells the contestant — much to judge Simon Cowell’s amusement.

What else did Spears and fellow X Factor newbie Demi Lovato have to say? 

“I try to use constructive criticism,” says Spears. Meanwhile, Lovato, 19, describes herself as the “happy” judge. “I’m really, really honest,” she says.  “That’s the great thing about this panel.”

Last month, co-creator and judge Cowell told reporters that viewers will be surprised by Spears’ and Lovato’s judging styles. “Demi is a brat,” he said. “But there’s something likeable about her. Britney’s quite mean, as you’ll discover.”

Meow! The X Factor Season 2 premieres Sept. 12 a 8 p.m. ET on Fox.

Watch the promo for the all-new season of The X Factor above. Then tell us: Who do you think will give Cowell a harder time: the pop princess or the seasoned diva?