Rih Rih and CiCi's beef goes back two years, when the "Body Party" singer announced on TV that she "didn't think Rihanna was very nice" when the two met at a party. Rih snapped back on Twitter with, "My bad Ci. Did I 4get to tip u? U gangsta huh? Haaa." The insults flew back and forth for a couple of years, with Ciara even trying to squash the beef by sending positivity Rih Rih's way during a TV appearance, but the fiesty Bajan wasn't having it. "Why am I still the main topic of her interviews!!" she tweeted. Lesson learned: keep your mouth shut about Rihanna.
(Photos from left: pacific coast news, Kevin Winter/Getty Images for PCA)