Someday or One Day这首歌是《想见你》电视剧的片头曲，由孙盛希演唱。
歌曲节奏轻快，但又饱含着对心中的他的想念。音符奏起就把观众带入剧情中，把观众引入剧情。有许多观众也是因为音乐才追着这部剧。
《想见你》不同于以往的台湾无脑爱情剧，这部剧使用了双向的叙事手法。每集的结尾部分都是反转，让观众想不到接下来的剧情走向。明明是不同时空的四个人，却因为一场谋杀意外带来的穿越而联系在一起。在两个空间的维度之下，两段相同长相、不同身份的人物的爱情故事的发生。
同时，网站还为大家提供了《想见你想见你想见你》曲谱下载
Someday or One Day歌词：
Sunset fades away
Streetlights start to blaze
A turntable corner café
As evening fades to gray
Red brick alleyways
Winding like a maze
These memories rewind replay
And I am faraway
He said to me that one day
He'd meet me by the Milky Way
Impossible to stay away
Impossible to stay
But please tell me that someday
One day
Played this song for days
Wandering in a haze
Soundtrack turned up all the way
A smile to end the day
He said to me that one day
He'd meet me by the Milky Way
Impossible to stay away
Impossible to stay
You'll be back to me someday
One day
He said to me that one day
He'd meet me by the Milky Way
Impossible to stay away
Impossible to stay
But please tell me that someday
Please tell me that someday
You'll be back to me someday
One day
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