I'm not like you Barbies who try to be "just right"

“I'm different than you
In outrageous ways
Conform, I will not
For the rest of my days

I will be wild
And I will be strange
No matter how much you tell me
I will not change

I'll wear what I want to
When it suits my mood
Though it may come across like it
I don't mean to be rude

I'm not like you Barbies
Who try to be "just right"
I refuse to go down
Without putting up a fight

I'll go against your standards
Whenever I do wish
And if you don't like it
It's my rear end you can kiss”

-- Who am I?, Brittany Welch