Rihanna is back on Instagram in a grand style...

Rihanna, the queen of social media intrigue who has only become more intriguing since she took down her Instagram account, is BACK!

She made a cameo on her friend's account wearing little more than nude straps, necklaces, and a nose ring. 

She also appears to be smoking a blunt.

So, in case you were worried about her Labor Day weekend being sufficiently fun, you can now rest easy knowing that she's on a yacht with her posse, gyrating to Bobby Shmurda's "Hot N—a," and doing the "shmoney dance."

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CREDIT: Cosmopolitan