And people were scared Britney Spears would be too soft! In a new 'X Factor' commercial, the industry's priciest reality judge proves she may well also be the most entertaining.The commercial suggests that America's sweetheart may be hanging out with Simon Cowell a little too much when it shows off some of her harsh, but nevertheless polite and tactful, contestant criticisms.

The 'I Wanna Go' singer offers eye rolls and advice, telling one contestant, "You can't destroy that song," and dismissing another as "totally predictable." She told another simply, "You definitely don't have the X factor." Ouch, Brit! We can't see the singers she's talking to, though, so we can't quite tell yet if her cohort Cowell was right in saying that she's "catty" against cute girls.

Thing is, those are pretty tame compared to some of her other reactions. She previously told one hopeful, “I felt like I was listening to Alvin and the Chipmunks. I think your song was too high, sweetie," before lashing out at another, “I want to know who let you on stage. I feel uncomfortable with you even staring at me.” Yowza!

Despite her sugary smile and demeanor, Brit Brit does not hold back or mince her words, that's for sure. But she recently said during an interview that she strives for "constructive criticism," so we're not all that surprised by some of her commentary -- while her "constructive" comments can be a bit harsh at time, that's show biz for ya!

She also went on to explain that it's not all that easy refusing hopefuls, saying, "You know these people are driving so far out of their way to come in and to perform and put themselves out there. It’s really kind of hard to tell some of them no." See what she did there? "Some," but not all.

We can't freakin' wait to see 'X Factor' this season -- especially if they show Brit, Demi Lovato and Co. walking off the set!

Watch the Britney Spears 'X Factor' Commercial