What's the Big Frigin' Difference?!

Alright stop ... collaborate and focus! We've got a set of differences for you to check out while the DJ revolves it!  **HINT -- There are three differences in the above photographs!**

Source: http://www.tmz.com/2012/06/16/whats-the-big-frigin-difference-photoshop-tmz-games-celebrity-hunt/

Jessica Alba Jessica Biel Jessica Cauffiel Jessica Paré Jessica Simpson Zooey Deschanel Aaliyah Abbie Cornish