Okay so I have dirty blonde hair and I thought It would be fun to dye the ends of my hair blue with Kool Aid, I wasn't thinking and I have a huge formal dance to go to this weekend and I'm freaking out. How can I get my hair back blonde fast!

There is no way, yes you are correct you were not thinking, Perhaps going to a hair salon and have them fix your hair

I can only tell you what I've heard works, but I haven't tried it, and I can't say with 100% certainty that it will work. Also, it could damage your hair. If you choose to try the things I suggest, I take no culpability in what happens to your hair. In other words, if you try it and your hair falls out, it's not my fault. Try at your own risk.

Baking soda is supposed to work. Add water so it's watery, and then apply to your hair.

Vinegar has also been said to work, but even with vinegar it can take weeks before it's completely out. Also, the vinegar will likely dry out your hair.

Personally, I'd go to a professional, a hair dresser, and see if they have any products that can help.

Good luck.