Shear drama: Britney's not the first, nor will she be the last

So much has been reported about Britney Spears' decision to shave her head, with a host of psychologists and hairstylists being asked to decipher its significance.

Some deem it a cry for help. Others say it's a sign of empowerment. One thing's for sure: It's created quite a stir.

But Spears' haircut is hardly the first to shock.

Demi Moore, Jon Bon Jovi and Michael Bolton are just some of the celebrities who have set tongues wagging by cropping and shearing their famous hair. Others have gone down in the annals of hair history not for their cuts but for their rugs — like Ted Danson, who doffed his toupee on an episode of "Cheers."

"Hair is a huge part of our identity and our self-expression," says Kyan Douglas, beauty expert from the Emmy award-winning "Queer Eye for the Straight Guy."

Here's Douglas' take on some of the more notable celebrity haircuts that have made headlines:

DEMI MOORE

"With actors it's always interesting to see how far they're willing to go in terms of embracing a role, but I think Demi was the first person that really did something so radical as to shave her head. She was this sort of '80s bombshell box-office wonder. She was the first person who was really able to take a risk by taking the thing she was known for and her femininity and sort of putting it to the side. And the thing is, she looked really hot. It was like, 'OK, yeah, women don't have to have long flowy hair to be beautiful, sexy and feminine.' "

DAVID BECKHAM

"He's one of those sort of rare wonders of nature. He probably could do just about anything to himself and he'd still be a good-looking guy. He's the kind of guy that I think the rest of us are sort of angry at on some level. How dare you be so perfect!"

JON BON JOVI

"For artists especially, hair is a definite tool for reinvention. When Bon Jovi cut his short, he was sort of known for being the frontman for this hair band, and he in some ways said, 'You know what, I'm something more than that.' I think it was an attempt to reinvent himself but also to have people focus on his music and his work a little more."

MICHAEL BOLTON

"When that hair came off I was like, 'Thank God.' That was ridiculous. It looked like he did it with a crimper every morning. And then he shaved his head and he was actually this beautiful man with a striking face and great features. I know there are a lot of women that really liked his long hair, too, because long hair can definitely be sexy and have a certain type of allure, but I think most of us just can't pull it off very well. For me, Michael Bolton was huge improvement."

ROSIE O'DONNELL

"It's coming out of the closet, isn't it? I think that's what that was about. There were probably pent-up lesbian things and she needed to really get in touch with her butch side, I guess."