Ugh, I hear ya. Start dying it. I found my first grey hair at 26...as soon as we got back from Disneyland. Well, we weren't even home yet...I was at the hotel by the airport for the night and was hopping in the shower and saw it...YIKES. It wasn't a pretty scene, I will tell you that.
I've decided that from now on I won't know what color my hair is supposed to be naturally until the day I die...