Rihanna has become infamous for her Twitpics and Instagram uploads in recent months, but her latest set is strange even by her high standards.

If you thought she couldn’t top grinding with strippers or sitting on her bodyguard’s shoulders playing with white powder on his head, think again.

Wednesday morning she uploaded this one. When someone asked where she’s been as “You been quiet all day”, Rihanna replied with this pic:

Yup, her arm with an IV attached. No other comment or caption.

It’s definitely her arm, too, because the elaborate nail painting job that she got before attending the

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