Juan Rico/Fame
Anne L. Fritz
Dec 28, 2010 @ 12:06 pm

Happy birthday, Sienna Miller! In honor of the trendsetting actress’s 29th birthday today, we took a look back at her style to pinpoint her top five style rules. Who can't learn a thing or two from this red carpet master? Click through to see Sienna Miller's top go-to styles. Plus: Tell us what you think of her style in the comments!

You May Like