Is Rihanna Hitting the Party Scene Too Hard?

Is Rihanna out of control? That's what many were wondering after she tweeted a startling photo of an IV needle in her arm.

It happened shortly after she made an appearance at a major fashion event in New York. She looked great in a sexy, form fitting black dress, showing off long, black nails. The same nails appeared later in the IV photo.

Initially Rihanna was said to be suffering from dehydration, but insiders are reportedly saying the pop star was hitting the party circuit too hard and needed to slow down.

It looks as if she has had enough of Chris Brown—she just "unfollowed" her ex-boyfriend on Twitter.