Kelly Osbourne Tells Rihanna To "Please Get A Sense Of Humour!"

28 August 2012

Kelly Osbourne has waded into the Twitter.com war between aging comedian Joan Rivers and Rihanna -- telling the singer to "please get a sense of humour!"

Rihanna slammed Rivers over the weekend after she mocked Ri over remarks she made about her ex-boyfriend Chris Brown during a recent candid TV interview with Oprah Winfrey.

In the emotional chat Rihanna broke down in tears when she admitted she still loves her ex-boyfriend, who was charged with assault and placed on probation after he beat her in 2009.

Rihanna and Joan Rivers fighting on Twitter!

Loud mouthed Rivers took great offense to Ri's comments, taking to Twitter.com to call the star out on her confession, writing, "Rihanna confessed to Oprah Winfrey that she still loves Chris Brown. Idiot! Now it's MY turn to slap her."

Rihanna quickly retaliated, replying, "Joan_Rivers wow u really do get slow when you're old huh?", before adding, "Slap on some diapers."

Attempting to smooth things over Joan issued an invite to Ri to appear on her show Fashion Police, writing, "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!"

And now co-star Osbourne has backed up her pal, writing, "W/ (with) the greatest of respect 2 a young lady of whom I love please get a sense of humor @Joan_Rivers paved the way 4 all us opinionated ladies!"

What do you think? Does Rihanna need to get a sense of humour?