Always an avid supporter of social causes, Sienna Miller was spotted at the World AIDS Day shindig in London, England today (December 1).
The ?Factory Girl? actress looked excited to light the ?London Eye? red as she kept warm in a black winter jacket.
This past Friday (November 26) Sienna was out with her beau Jude Law at the celebrity-popular Groucho Club in London.
Miss Miller?s man was still sporting his Dr. Watson mustache and Sienna was dressed spiffy in a fur-lined coat.