《One Day》是Supercell演唱的一首歌曲，發行於2016年。以下是其歌詞：
One day we'll meet again, one day we'll see each other
One day I'll feel like I do now
I don't know when
I don't know where
But it's worth the wait
One day you'll feel the same
One day you'll see my face
Just like a dream you fell into
I'm sure you feel it too
You can tell me that it's over
And we'll pretend we hear nothing
It's only a moment until
One day we'll meet again
We might feel so small and insignificant
But that's how we'll feel most of the time
It's not that we don't care
It's just that life is a game
We play for keeps but we don't win
Until one day
One day we'll meet again
One day we'll see each other
And we'll both be free to love
Without fear or reservation
Without regret or reservation
One day we'll both be complete
Until then, let's dance and sing
In this game of life we play
Until one day...
我們有一天會再次相遇，有一天我們會再次相見
我們可能會覺得渺小而微不足道，但那正是我們大多數時候的感覺
我們並不是不在乎，只是生活就像一場遊戲
我們全力以赴，但總是輸得一敗塗地
直到有一天，我們有一天會再次相遇
我們可能會覺得渺小而微不足道，但我們會自由地愛著對方
沒有恐懼和保留，沒有後悔和保留
我們有一天會變得完整
在此之前，讓我們跳舞唱歌吧
在這個生活的遊戲中我們盡情地玩耍
直到有一天…