Jenny Lewis' music video for Just One Of the Guys is awesome because Anne Hathaway, Kristen Stewart and Brie Larson are all in it - in drag!

In the first half of the vid, the ladies look like themselves, then switch over to their guy alter-egos.

Who knew Anne was so convincing as a boy? Also, doesn't Kristen look just like Justin Bieber in that wig? How about the dancing?

We are obsessed!