Catfight!

Rihanna reportedly bit back hard after Taylor Momsen broke out the claws calling the pop star a “wannabe rock chick” and her choice of dress “annoying.”
 
According to sources, RiRi “did not take kindly to a 17-year-old making such rude comments about her,” and promptly tracked down her digits so she could tell her woman-to-woman to “back off and act her age.”

Adding, “Rihanna is not the kind of person you want to mess with.”

We guess so.