Katy Perry relies on Rihanna for support during Russell Brand divorce

rihanna-katy.jpgWhenever a woman goes through a tough break-up, it's normal for her to lean on her BFFs for support. It's not so normal for her BFF to be Rihanna, but when you're Katy Perry, reality is a little... heightened.

The NY Post reports that Perry has relied on Rihanna (who obviously knows a thing or two about tough breakups) during this difficult time as she navigates her split with husband Russell Brand. "Katy is hardly speaking to anyone right now, but she called Rihanna as soon as she heard Russell was filing for divorce," says their source. "When Katy told her the news, she suggested flying down to Barbados to stay with her and her family."

Rihanna, who planned Perry's bachelorette party before her wedding, was easier for Perry to talk to than her parents, who opposed her marriage to Brand from the get-go. They're even planning a girls' trip to Mexico to ease the sting.

"Rihanna has been there for Katy, texting her from Miami where she's on holiday," a source says. "Now they are planning a girly getaway so Katy can clear her head."

Meanwhile, Brand isn't getting any support from fellow Brit Sharon Osbourne, who discussed the divorce on "The Talk" Tuesday morning -- particularly the part where Perry and Brand have no prenup.

"I tell you what he is entitled to - a one way ticket back to London!" she said. Not because he was a bad husband, though. "Forget whatever he did with Katy Perry, but that performance in Arthur...He ruined one of my favorite movies, so for that, be gone and don't come back!"

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