《愛情的理解》OST Part 4 比較特別地一口氣推出了 3 首歌，其中第二首是由鄭欽樂隊主唱的《Love Song》。簡單的歌詞，講述來又去的愛情，可惜嗎？不，生活本便是如此，愛情也一樣。

Jungheum Band 鄭欽樂隊(정흠밴드) -  Love Song (愛情的理解 Opening title)

When I first went into your eyes

當我第一次走進你的眼睛

Felt like I was on cloud nine

我感覺非常開心

But you know there’s always comes and goes

但你知道吧 人總是來來去去的

Love always comes and goes

愛情也是來來去去的

And heartache is on next door

而悲傷就在隔壁

This is just how life should be

這只是生命的本貌

This is just how we are

這只是我們的方式

This is our love song

這是我們的愛情歌

This is how we are

這就是我們

When you were passing by the street

當你走在街上

I knew that you were mine

我便知道 你曾屬於我

But you know there’s always comes and goes

但你知道吧 人總是來來去去的

Love always comes and goes

愛情也是來來去去的

And heartache is on next door

而悲傷就在隔壁

This is just how life should be

這只是生命的本貌

This is just how we are

這只是我們的方式

This is our love song

這是我們的愛情歌

This is how we are

這就是我們

This is about you and I

這是有關你和我

This is just how life should be

這只是生命的本貌

This is just how we are

這只是我們的方式

It’s our love song

那是我們的愛情歌

This is how we are

這就是我們