Rihanna looks stunning in her Giorgio Armani nightgown while be honored by Stella McCartney.

Keywords: rihanna, giorgio armani, stella mccartney

As the guest of honor, Rihanna made quite the entrance at Stella McCartney’s London Fashion Week soiree yesterday evening. Although her silk Giorgio Armani stunner could have very well passed for a nightgown, she still brought along a touch of elegance and class to her sexy look. While I think RiRi looked gorg, I would have preferred to see her in Stella (since it was her party and all), either way the girl sure does know how to dress.