[Verse 1: Justin & All]
She was my once in a lifetime
Happy ending come true
Oh, I guess I should have told her
I thought she knew
She said I took her for granted
It's the last thing I would do
Oh, I'll never understand it
I thought she knew
(I thought she knew)
[Chorus: JC]
I thought she knew
My world revolved around her
My love light burns for her alone
But she couldn't see the flame
Only myself to blame
I should have known
I should have known
[Verse 2: Joey & All]
A heart full of words left unspoken
Now that we're through
I'd sell my soul to have this silence broken
Oh, I thought she knew
(I thought she knew)
I thought she knew
[Chorus: Chris]
I thought she knew
My world revolved around her
My love light burns for her alone
But she couldn't see the flame
Only myself to blame
I should have known
I should have known
[Reprise: Justin & All]
She was my once in a lifetime
Happy ending come true
Whoa, I guess I should have told her
But I thought she knew
(I thought she knew)
[Outro: Justin & All]
I thought she knew
(I thought she knew)
I thought she knew
(I thought she knew)
I thought that she knew
Oooh, ooh, ooh
