Alrighty, so I died my hair a dark brown, and it kind of came out black. So I would like to go back to a lighter brown but still dark. Can I do that today? I have a business thing tomorrow and would rather I did not have this hair colour?? HELP!! :confused:

You could, but it is not a good idea. I did this two years ago and my hair had a greenish tint to it. You should just wait a week at least then try it. Or go to a pro.