《Heartbeat》的歌詞如下：
Amy Diamond
Heartbeat
Yeah, I can feel it coming back
Just like a heartbeat
Yeah, it's beating loud
Yeah, it's beating loud
I've been feeling it all night long
And I don't know what it is
But I'm feeling it in my bones
And I don't know what to do
But let it show, let it show, let it show
Oh, oh, oh, oh
Let it show, let it show, let it show
Oh, oh, oh, oh
Just like a heartbeat
Yeah, it's beating loud
Yeah, it's beating loud
I'm feeling something real
And I don't know what it means
But I'm feeling it in my dreams
And I don't know what to say
But let it show, let it show, let it show
Oh, oh, oh, oh
Let it show, let it show, let it show
Oh, oh, oh, oh (Yeah)
The more that I take of you (Oh)
The deeper that I love (Yeah) (Ooh)
Can you feel the same way too? (Oh)
Like a heartbeat (Oh) (Oh) (Yeah)
Just like a heartbeat (Heartbeat) (Heartbeat) (Yeah)
Yeah, it's beating loud (Oh) (Oh) (Yeah) (Yeah) (Yeah) (Yeah) (Yeah) (Yeah) (Yeah) (Yeah) (Yeah) (Yeah) (Yeah) (Yeah) (Yeah) (Yeah) (Yeah) (Yeah) (Yeah) (Yeah) (Yeah) (Oh) (Oh) (Oh) Oh... Oh... Oh... Oh... Oh... Oh... Oh... Oh... Oh... Oh... Oh... Oh... Oh... Oh... Oh... Oh... Oh... Oh... Oh... Oh... Oh... Oh... Oh...
(停頓一下，然後再接著唱下去）
(重複“Let it show”) 直到歌曲結束。
(重複“Just like a heartbeat”) 直到歌曲結束。
(重複“The more that I take of you”) 直到歌曲結束。
(重複“Can you feel the same way too?”直到歌曲結束。)