"Heart Attack" 是由Loona演唱的一首歌曲，歌詞如下：
Heart attack, oh oh oh
You make my heart attack
Every time I see you, my heart beats faster
My heart, my heart, it pounds in my chest
Every time I'm with you, I feel so alive
My heart, my heart, it's beating so strong
I don't know what it is about you
But I can't get enough of you
Every time I'm near you, my heart beats faster
And I don't know what to do
I try to fight it, but it's no use
My heart keeps calling out for you
I don't know what to do
But I'm going to let it show
Heart attack, oh oh oh
You make my heart attack
And I don't know what to do
But I'm going to let it show
Every time I think of you, my heart pounds faster
And I can't help but feel so alive
I don't know what it is about you
But I want you to know that I'm feeling it too
I try to hide it, but it's no use
My heart keeps calling out for you
I don't know what to do
But I'm going to let it show
Oh oh oh oh oh oh oh oh oh oh oh oh oh oh oh oh oh oh oh
Heart attack, it's a disaster
And I don't know what to do
But I'm going to let it show
My heart is yours, it belongs to you
Oh oh oh oh oh oh oh oh oh oh oh oh oh oh oh oh oh oh
You make my heart attack.