Katy Perry and British comedian husband Russell Brand announced their divorce over the weekend and Rihanna's doing her duty as Katy's friend.
The "We Found Love" singer is is doing all she can to keep Katy from completely losing it, according to Perez Hilton.
The pair have been in continuous conversation since the news broke and have been reportedly texting nonstop. In addition, the ladies are aiming to take a jaunt to Mexico soon so "Katy can clear her head."

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