![](https://images.toofab.com/image/f4/o/2011/10/20/f4d6dcaf07775beca3a07b7138bb2701_md.jpg)
Looks like Kate Hudson is wigging out!
The normally blonde actress was spotted with a shocking new 'do yesterday on the set of her upcoming thriller "The Reluctant Fundamentalist."
Instead of her regular sunny locks, Kate was sporting a darker brunette hue -- which we're assuming is a wig.
What do you think of the serious new look? Sound off below.