Natasha Bedingfield from the United Kingdom. This song, "Unwritten", was released in 2005.
Lyrics:
I am unwritten
You can't read my mind
I'm undefined
I'm just beginning
The pen's in my hand
Ending untold
Staring at the blank page before you
Open up the dirty window
Let the sun illuminate the words that you could not find
Reaching for something in the distance
So close you can almost taste it
Release your inhibitions
Feel the rain on your skin
No one else can feel it for you
Only you can let it in
No one else can speak the words on your lips
Put yourself in words not spoken
Live your life with arms wide open
Today is where your book begins
The rest is still unwritten
I break traditions
Sometimes my tries
Are outside the line
Within condition
To not make mistakes
But I can't live that way
Chorus
Feel the rain on your skin
No one else can feel it for you
Only you can let it in
No one else can speak the words on your lips
Put yourself in words not spoken
Live your life with arms wide open
Today is where your book begins
The rest is still unwritten