Lyrics:

I got nosy and I read her letters
I read her diary it's the same story and nothing better
The words remind me of someone else's heart
Has gone and left a mark

And the pop music plays on the local radio
There's people on the street but no one that I know
And like my heart is now, I know not where they go

Same words, different meaning
Same heart, different feeling
So much for him, so much for her, 'cause that's past
Now I know about that someone else's heart
Now I know about that someone else's heart

She got nosy and read my letters too
And my notebook surprised to find that
Love is not so new
So we both took someone else's heart
And walked it through the dark

A feeling so rich, I turned around to laugh
We had both indulged in each other's past
To find out that our love was true enough to last

Same words, different meaning
Same heart, different feeling
So much for him, so much for her, 'cause that's past
Now I know about that someone else's heart
Now I know about that someone else's heart

(Someone else's heart)
Now I know about that someone else's heart
(Someone else's heart)
(Someone else's heart)
Now I know about that someone else's heart
(Someone else's heart)
(Someone else's heart)
Now I know about that someone else's heart
(Someone else's heart)
(Someone else's heart)
Now I know about that someone else's heart
(Someone else's heart)