《Lost Sparks》的歌詞如下：
女：
Lost sparks fly up to the sky
Golden memories, forever with you
男：
Fly up, fly up, lost sparks
Find your way, don't be afraid
女：
Looking back, the past is gone
But I still have you in my heart
男：
Don't be afraid, don't give up
We will go through the storm together
女：
Lost sparks, fly up to the sky
Golden memories, forever with you
男：
Fly up, fly up, lost sparks
Find your way, don't be afraid
男：
We will always be together
Through thick and thin, we will never let go
女：
The world may change, but our love will never fade
We will always have each other
男女合唱：
Lost sparks, fly up to the sky
Golden memories, forever with you
Through the storm, we will always hold hands
Together forever, our love will never die.
這首歌表達了對失去的愛情的懷念和堅持，認為即使失去了愛情，曾經的回憶會永遠伴隨我們，我們會一起經歷風雨，愛情會永不褪色。