Not one to hold her tongue, comedianne Joan Rivers lashed out at comments Rihanna made on "Oprah's Next Chapter" regarding her ex, Chris Brown. The young singer, who expressed during the sit-down chat that she is still in love with Brown, compelled Rivers to angrily tweet Rihanna.

The veteran comedian blasted Rihanna for her apparent weak stance on what Brown did to her, tweeting: "Rihanna confessed to Oprah Winfrey that she still loves Chris Brown. Idiot! Now it's MY turn to slap her." The Bajan pop princess has been known to get down and dirty on the internet, responded to Rivers with, "Wow, you really do get slow when you're old, huh?" Quickly that message was taken down, deleted and instead Rihanna slammed Rivers with, "Slap on some diapers." The final shot in the war of words between these two entertainers was delivered by the E! Network grand dame of comedy, saying, "Honey, Rihanna, everyone knows: If he hit you once, he'll hit you again. Read the statistics. PS — Love to have you on Fashion Police!"