谁能听出西城男孩<reason for living>歌词的分工?

惭愧啊，以前还没听过这首在Queen of My Heart单曲里的歌，今天听了两遍，不知道对不对。
高潮当然是Mark在唱高音，但听起来大部分似乎是Nicky在领唱

Reason For Living
Westlife

Shane：
I lie alone and thinking
How could this ever happen
Is it real
Am I dreaming
And when your heart's been burned
How can someone learn
To get over their fears

Nicky：
You told me I should be strong
Oh I'm trying
I feel I can't go on
You left me here on my own

All：
Without a reason for living
A chance for forgiving
A time to make it ok
And now I'm stuck with the vision
Of my indecision
Taking it all away

Mark：
From me

Bryan：
With all the time you're taking
Slowly my heart's been breaking
You've been fine
I've been bleeding
I'll have to wait my turn
Your respect I'll earn
No more joking or teasing

Kian：
You told me I