Rihanna on the set of "S&M" music video

Rihanna tweeted a photo of her on the set of her music video "S&M".  From what Rihanna is doing the photo, I'm really interested in what the video is going to look like.  The music video should be out sometime next month.  The single has officially became a hit on the Hot 100 and will probably go higher after the single and video is released.