Joan Rivers tweeted: "Rihanna confessed to Oprah Winfrey that she still loves Chris Brown.Idiot! Now it's MY turn to slap her".
Riri responded, saying: "@Joan_Rivers wow u really do get slow when you're old huh?"
Then she deleted that tweet but wrote: "Slap on some diapers"
Rivers later tweeted: "@Rihanna everyone knows: if he hit you once, he'll hit you again. Read the statistics. PS - Love to have you on Fashion Police!"
Uhhhhhm, Rihanna probably thinks she's a diva or a dictator and can't handle the rough comments obviously. She acted like she doesn't know about Joan River's celebrity humour. Plus, Joan is old enough to be right. DAYUUM!