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"That&amp;apos;s what friends are for! Katy Perry couldn&amp;apos;t resist getting a playful jab in at BFF Rihanna during a recent interview with Elle Canada, calling the &amp;quot;Diamonds&amp;quot; singer out for her unapologetic marijuana use and selfie-prone tendencies.\r\nWhile speaking about her own favorite ways to de-stress (&amp;quot;I learned this thing called Transcendental Meditation,&amp;quot; she told the writer), Perry, 28, brought up her musical partner in crime.\r\n\r\n&amp;quot;I think that Rihanna always looks so fresh and I&amp;apos;m like, &amp;apos;How do you do that? We all know how much pot you smoke! And you don&amp;apos;t sleep because you&amp;apos;re on Instagram at four o&amp;apos;clock in the morning!&amp;apos;&amp;quot; she said with a laugh and a wink.\r\nThe fellow pop superstars, who reconnected during an intimate dinner in NYC&amp;apos;s West Village on Monday, Aug. 12, have never been quiet about their friendship, often posing together at awards shows and out at late-night parties. The duo did have a brief falling out earlier this year, after 25-year-old Rihanna was reportedly back together with her on-again, off-again ex Chris Brown.\r\n\r\n&amp;quot;They aren&amp;apos;t tight anymore because Katy doesn&amp;apos;t approve of Rihanna dating Chris Brown,&amp;quot; an insider told Us Weekly at the time.\r\nRihanna has since split from Brown, 24, and Perry is currently reunited with her own on-again, off-again love John Mayer, 35.\r\n\r\nThe couple recently collaborated on track &amp;quot;Who You Love,&amp;quot; to which Perry contributed a tiny &amp;quot;love giggle.&amp;quot;&amp;#xA0;\r\n&amp;quot;It&amp;apos;s like the ones that Mariah Carey had in 1990 and stuff like that,&amp;quot; she  told the host of Morning Mash Up last month. &amp;quot;Yeah, I think I was going for that, I think I was just so happy. I love that song!&amp;quot;"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.usmagazine.com/celebrity-news/news/katy-perry-jokes-about-bff-rihannas-pot-smoking-instagram-tendencies-2013169>