Kim Kardashian -- Changing Colors or Wigging Out?

We're kinda tired of solving this mystery, so we'll leave it to you. Is Kim Kardashian that fickle that she'd change her hair color twice in the same month, or is wearing a wig?

This pic was taken Friday in Calabasas. It paints a dark picture of Kim K ... this, just weeks after she became blonde during Paris Fashion Week.

Check out this pic Kim posted with her photographer, Ellen von Unwerth. BTW, Ellen specializes in "erotic femininity."

Now that we think about it, screw the hair. What's Kim up to now?