It seems like yesterday that the innovative Stefani was enchanting young girls everywhere with her pink or blue or platinum random hair knots. Actually, it was yesterday. Gwen Stefani continues to return to her defining hairstyle even now, perhaps with a slightly more sophisticated approach.

One great way to associate a hairstyle with your image is to name yourself after your hair. Pink's hair, while it's been many colors, was originally pink. No matter what color the locks, Pink now owns this Heat Meiser-ish upsweep of her trademark boyishly short hair.

Some of us can remember when a hairstyle this short and spikey on a woman was considered ground-breaking and quite daring. Liza was spiking her hair before Green Day was potty training.

Ivana Trump made her mark on hair history by answering her divorce from millionaire Donald Trump with a triumphant makeover. As part of the makeover, this updo hairstyle immediately became Ivana's trademark and took its rightful place amongst the most iconic hairstyles of all time.

Iconic hair often seems to come accompanied by a talent for overcoming adversity. Rihanna kept a low profile during and after adversity found her. Upon returning to the spotlight, this daring scene-stealing hairstyle seemed to tell the world that Rihanna was stronger and more confident than ever.