Posted by babu 5:24pm GMT
Leighton Meester looked adorable in a casual Theory shirtdress and brown belt combo while on the set of "Gossip Girl" last week.
Steal her style with the Marcy Shirt Dress, $39.90-$41.90, alloy.com.
Celeb photo: Jason Webber/Splash News
!["How I Met Your Mother"](http://mylt.ltcdn.com/d6/sites/mylifetime.com/files/images/imagecache/carousel_159x119/2011/01/12/HIMYM-159x119.jpg ""How I Met Your Mother"")
