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Rihanna, Instagram

instagram.com

Lena Dunham and young, impressionable girls around the world, look away.

Rihanna posted yet another Instagram shot of herself sexily smoking what appears to be a blunt on Wednesday. (Lena told Alec Baldwin Monday the Barbadian beauty's often reckless behavior "cracks my heart in half" because so many idolize her.)

But smoking and looking sexy isn't all Rihanna's up to these days. The 24-year-old tweeted that she's in rehearsal for her Diamonds World Tour.

The tour kicks off March 8 in Buffalo, N.Y., and wraps up July 28 in Helsinki, Finland. And yes, there's an Amsterdam show in there.