《Love Letter From Heartbeat》的歌詞如下：
女：
Every time I see your face
My heart beats a little faster
Every time I hear your name
My heart skips a little beat
男：
I don't know what to say
I'm feeling nervous and shy
But I want to tell you how I feel
About you girl
女：
Oh my love letter from your heartbeat
This is the first time for me too
To feel so special in my life
So I'm writing this letter to you
男：
You make me smile from morning till night
Your smile, your laugh, everything about you
Is like a sweet melody to my heart
And I hope you'll understand this feeling too
女：
I don't know what to write but these words are real
My heart belongs to you and only you
男：
You make me laugh and feel the joy of life
But more than anything else girl, I want you by my side forever
女：
Oh my love letter from your heartbeat, don't know how to express it all but these words are real, my heart belongs to you and only you. I'll love you forever and more. Forever and more. Forever and more. Forever and more. Forever and more. Forever. Forever. Forever. Forever. Forever. Forever. Forever. Forever. Forever. Forever. Forever. Forever. Forever. Forever. Forever. Forever.
以上為英文版歌詞，希望能夠幫到您！