电视剧《一又二分之一的夏天》片尾曲的歌名叫《Let It Rain》，由尼坤演唱，完整的歌词如下：
一又二分之一的夏天片尾曲(Let It Rain) - 尼坤
Let it rain
Let it rain
Oh I aint scared no more
Let it rain
Let it rain
I know I got you by my side
Like an angel
Like my mother
Like the bestest friend of mine
Like an angel
Like my mother
Like the bestest friend of mine
Like an angel
Like my mother
Like the bestest friend of mine
So I let it rain