電影《K歌情人》的主題曲是《Let It Rain》 ，由阿黛爾演唱，以下是這首歌的歌詞：
歌詞：
Oh let it rain
Everybody just let it rain
Oh let it pour
Oh let it stream
Oh oh oh
Oh oh oh
Let it rain on your weary head
Let it wash away what you've been said
Let it rain on your doubting head
Let it wash away all your dead ends
Just let it rain
Oh oh oh
Oh oh oh
You've been feeling down all of your life
Now it seems like every dream you've ever had is slipping away
But let it rain, let it pour, let it stream
Oh oh oh
Oh oh oh
And all of your worries and doubts will disappear
Just like a river running wild in the rain
Oh oh oh
Oh oh oh
Oh oh oh
Oh oh oh
Just let it rain, yeah yeah yeah yeah yeah yeah yeah yeah yeah yeah yeah yeah yeah yeah yeah yeah yeah yeah yeah!
這首歌歌詞展現了主人公對於雨水的期待和感情變化，希望能夠把那些不如意的記憶沖洗掉，把困惑憂慮統統淹沒。這是一種宣洩、解脫、憧憬與重新出發的態度。而隨著音樂的激昂與磅礴，這首歌曲將帶領觀眾走向歡快的場景。如果你想要知道電影情節的詳情或者有其他相關問題，歡迎繼續詢問。