It must be Sienna Miller day! We already knew that Sienna Miller is making a name for herself in the world of acting, but the British babe is also leaving her mark on the world of fashion.
In Park City at the Sundance Film Festival, Sienna stopped by the Hollywood Life house where she picked up some Zooey t-shirts. What really caught her eye about the special edition tees is that they help contribute to stop global warming.
The line, partnered with http://www.stopglobalwarming.org/default.asp, is a charity created by Laurie David to help bring awareness to the world. The t-shirt Sienna picked up was the "World of Cool" and we hear Sienna isn’t the only star whose a fan of this line, Terri Hatcher, Nick Nolte, Billy Baldwin, Zooey Deschanel, Billy Crudup are all huge fans...and the list doesn't stop there.
To get your very own Zooey shirt log on to http://www.zooeytees.com/.






























