Multi-colored hair: Cool?

It is with reasonable trepidation that I ask your opinion on the following: Is multi-colored hair okay?
I mean we all know that a number of factors come to into play when it comes to deciding what hairstyle you should rock: Culture, occupation, image, even head shape.
But is it ever okay to mix the colors of the rainbow into your skull? And if so, which way do you comb something like that?
I mean, would you hire someone who had at least three different pastels in their follicles? I mean, long live the weave but I need to understand the motivation and reasonings behind the current trends of haircare that are circulating out there.
Am I old fashioned? Or is the peacock the "in" thing right now?

What 'Going Natural' Means

When you think of the phrase "going natural," it is common to assume that one means growing a 'fro. But natural doesn't have to mean a fro, it could mean braids, it could mean corn rolls, it could mind many things.
Imagine if "getting a perm" meant that your hair was straight and only straight: Misleading, right?
"Going natural" opens up a range of styles. The possibilities end with your imagination. Remember this: There are no limits.

Chris Rock's "Good Hair" unbeweavable

Comedian Chris Rock said he was apprehensive about bringing his documentary about the black hair experience to the Sundance Film Festival in Utah this week.
"Because I think this is the blackest movie ever made," said Rock, a producer and co-writer on the film. "So I was kind of scared to come to Utah, because it's so white."
"Good Hair" is chockful of interviews with celebrities and people who have unique hair - including Al Sharpton, Raven Symone, Ice T, Eve, Maya Angelou and Nia Long.
Several hair shows are featured in the film including Atlanta's Bonner Brothers gala and the irresistable "Hair Wars" of Detroit.
All types of woman instill witty insights about their hair from those under the dryer to those undergoing perms with chemicals that damage the scalp to those that pay thousands to have hair from India (Rock makes a trip to the Far East to track down where the exotic, silky black strains comes from).
So, the question is, why, do you think, black women (and by extension all black people) are so self-conscious about their hair?