AHHHHHHHHHHHHHHH
So I wanted to highlight my hair. Had never done it before, or any kind of dye job for that matter. It would have turned out great except, on the top of my head, on the left side toward the back there is a fairly large, quite noticible blond spot! ACK
So WHAT on earth can I do to fix it??

And if you have any quick tips to just kinda disguise it (I have work tomorrow!!) that'd be much appreciated.
HEEEELP!