Lyrics:

It'll last forever
Something so strong inside
Never made a song better
I feel what I realise tonight

Calling
Kiss, kiss

Oh, it's the sound of my heart
Don't fade away, oh yeah
It's the pressure of my life
While I'm breaking up inside
Somebody's saying

Just hear the sound of my heart
Don't let it fade, oh yeah
It's the passion of my life
While I'm taking from inside
The song that I'm playing
(Sound of my heart)

Loving more than ever
Music so pure and plain
Let us hear it together
Oh, follow my heart to my refrain

Calling
Kiss, kiss

Oh, it's the sound of my heart
Don't fade away, oh yeah
It's the pressure of my life
While I'm breaking up inside
Somebody's saying

Just hear the sound of my heart
Don't let it fade, oh yeah
It's the passion of my life
While I'm taking from inside
The song that I'm playing
(Sound of my heart)

Oh, it's the sound of my heart
Don't fade away, oh yeah
It's the pressure of my life
While I'm breaking up inside
Somebody's saying

Just hear the sound of my heart
Don't let it fade, oh yeah
It's the passion of my life
While I'm taking from inside
The song that I'm playing

Oh, it's the sound of my heart
Don't fade away, oh yeah
It's the pressure of my life
While I'm breaking up inside
Somebody's saying