Gorgeous Grey's Anatomy star Katherine Heigl tried on three vastly different looks for October's InStyle. The one on the right is the cover; I believe the other two are fold-outs in the magazine (will definitely be picking this up tonight!).

I'm not sure how I feel about her as a brunette, but I'm loving the idea. The sultry, smokey-eyed look on the left is my favorite, and reminds me of Katherine's look at the Emmys last year.

Which is your favorite?