Russell Brand-Katy Perry 14-month marriage over
Russell Brand (L) and Katy Perry arrive for the European premiere of the film "Arthur" in London April 19, 2011.

Heartbroken Katy Perry is planning to fly to Mexico to be with her friend Rihanna after she split with her husband Russell Brand over a row about starting a family.

Rihanna has been a great support to Katy over the past couple of weeks, as both are in regular touch with each other, ever since Katy's 14-month-old marriage to Russell Brand ended, reported The Sun.

A source was quoted by The Sun as saying: "Katy is hardly speaking to anyone right now, but she called Rihanna as soon as she heard Russell was filing for divorce. Katy was embarrassed about calling her parents as they'd been so against Russell in the first place, but Rihanna was a great support for her and she really helped to calm her down. When Katy told her the news, she suggested flying down to Barbados to stay with her and her family."

Mirror reported that Russell, 36, is believed to have split from Katy as she did not want to have children, and Katy is shattered.

"Katy is absolutely devastated, but the rows over starting a family had just come to a head. Yes she had agreed to take a year out to focus on children, but she realised the timing was all wrong. She is too young and does not want to put her music on the back burner while she is on top of her game," a source was quoted by The Mirror.

Katy is presently in Hawaii while Russell is in a £1,000-a-night suite at Savoy hotel in London. Asked how he was dealing with the break up, Russell told The Sun, "I'm all right," adding sarcastically: "Everything is perfect."

Russell is entitled to half of Katy's £28 million wealth. But friends say Russell, worth £11 million himself, has promised to divide their assets "as friends."

However, the pair was last spotted together at a charity benefit in LA on December 3, reported The Mirror.