See, I'm not even a Kristen Bell fan, but I have to give her props for taking chances on her wardrobe, instead of just wearing exactly what her stylist picks out for her. Hayden should take notes while she's out with Kristen, seriously.

Here's more of Kristen at that Old Navy party. I know the dress is supposed to be like that, but it honestly looks like she forgot to zip it up in the back.