Pop star Katy Perry  and "Avatar" actress Zoe Saldana  don't exactly have the same tastes in fashion. Katy prefers out-there ensembles, like the glow-in-the-dark gown, while Zoe usually opts for a more sophisticated and lady-like style. Recently, though, their closets collided when the two stepped out in very similar versions of a gold-and-white Balmain Spring 2012 mini dress just seven months apart. Now it's up to us to decide who wore it better???