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It’s still full-on dress up time for pop star, Rihanna, who stepped out to the Dior Spring/Summer 2010 show for Paris Fashion Week in a decidedly retro-looking outfit.

Slinking into the show like an overly sexy extra on Mad Men, the starlet was dressed in all-blck, in a mini-dress, long gloves, super-high heels and a jaunty little hat.

The singer is a dressed like a sexy mistress in mourning, showing off her shapely legs. Although her skirt might be short, I much prefer this method of her flashing some skin versus her last few revealing outfits we’ve seen.

Gallery Info: Rihanna arrives at the Dior Spring/Summer 2010 Fashion Show in Paris.