Rihanna Backside CURVES Are PERFECTION! (PHOTOS)

Rihanna showed off her curves in a big way in a long, booty-hugging grey skirt and cropped grey sweater while out and about yesterday. 

The star is readying the release of her album 'Loud' on November 16th. Rihanna and Drake will collaborate on a new track, 'We actually just did a song together it's going to be on my album,' said Rihanna, 'The second song we did another version with him we may even shoot a video for it. I went out with him Trey [Songz] and J. Cole recently we had a lot of fun.'

Rihanna will also appear on 'Saturday Night Live' on the show's special Halloween episode on October 30th. The show will be hosted by 'Mad Men's' Jon Hamm, no word yet on whether Rihanna will appear in any sketches. 

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