Katy Perry Divorce 'Tested' Singer's 'Sanity'? Singer Opens Up To Billboard

Katy Perry Reveals Worst Part Of Last Year

It's been a big year for Katy Perry, who recently accepted the honor of Billboard's 2012 Woman of the Year. In spite of all of her professional success, the singer acknowledges that she's also faced her fair share of personal hardships.

"The worst [part of the last two years] was it being a test of my sanity," Perry told Billboard magazine. "You just have to always keep one foot out and be aware of all the people you're putting around you, their intentions and motives. I try to never let my intuition be muddled."

Although she didn't specify in the interview, it is likely that one of these "tests" was her very public split from British funnyman Russell Brand. The comedian filed for divorce at the tail end of December 2011, just 14 months after the couple tied the knot in India. Their split has been an amicable one by celebrity standards; two days after the ex-couple's divorce was finalized in July, Brand said of his ex-wife: "She's a young woman and she's beautiful and she's sensitive and I care about her deeply."

Brand and Perry aren't the only star couple to stay friendly after a split. Click through the slides below to see 15 other amicable ex-couples.

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Celebrity Exes Who Are Still Friends

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