The Celebrity: Rihanna
Celebrities She Has Beefed With On Twitter: Ciara, Teyana Taylor, Joan Rivers
Why She Needs To Stop: To be fair to Rih-Rih, she's often the one who is forced to defend herself from attacks from other celebs. She rarely instigates her Twitter battles. But, the celebs who throw stones at her aren't exactly big A-list celebrities. So, why does she even bother answering them? Shouldn't she be above it? We think so, which is why we're begging her to stop.