I had colored streaks in my hair a few years ago and I got so many compliments on my hair back then. I will always have a little bit of punk in me - red streaks in my hair on not!
I used cupcake pink on my unbleached light brown to dark blonde hair and the color was super cool. It was very noticable but not extremly intense. If you have hair past your shoulders you will definatly need two bottles.