Don't call Britney Spears a pushover!

The mama of two is unleashing her inner diva in the new promo for The X Factor.

After watching this clip, you may think that Simon Cowell's harshness is rubbing off on the usually sweet pop star.

Watch out contestants ... it's Britney, bitch!

Click thru to see our girl getting her groove on while a wanna-be star rocks the mic to Vanilla Ice's "Ice, Ice Baby."