Who sings this song?!

Who sings this song?

some of the lyrics are..

They can sceam behind my back
make fiction not a fact, try to rewrite my life
and they aint got a clue if i were
in their shoes id shut write up


take me as i am or not at all
cause i aint gonna change change myself for noone


it says its from high school musical 2 but it doesnt say who its from

1 week ago
it kinda sounds like ashley tisdale but i dunno

Vanessa Hudgens All Or Nothing Lyrics

They can play 'let's pretend'
Make em like them my best friend
Telling their lies
And they can scheme behind my back
Make fiction not a fact
Try to re-write my life

But they ain't got a clue
If I were in their shoes
I'd shut right up

Take me as I am
Or not at all
I ain't ever gonna change myself for no one
No compromise
'Cause it's my life
It's all or nothing.

They can laugh all they like
Got no need to justify
[All Or Nothing lyrics on http://www.metrolyrics.com]

I am who I am
And they can do their worst if they dare
If it makes them happy we don't care
It's out of their hands

'Cause they ain't got a clue
If we were in their shoes
We'd shut right up

Take us as we are
Or not at all
We ain't ever gonna change ourselves for no one
No comprosmise 'cause it's our life
It's all or nothing.

Take me as I am
Or not at all
I ain't ever gonna change myself for no one
Not compromise 'cause it's my life
It's all or nothing