What Was Said: During one of her low points in May 2013, Amanda Bynes tweeted to Rihanna, saying, "Chris Brown beat you because you're no pretty enough," and "I almost named my new dog Rihanna."
How Ri Responded: The Barbadian singer didn't reference Amanda directly but tweeted, "Ya see what happens when they cancel Intervention?" Amanda responded with more insults, writing, "Unlike your fugly faced-self I don't do drugs! U need the intervention dog! I met ur ugly face in person! U aren't pretty and u know it!"