《长江七号》的片尾曲 叫：SUNNY。详细的介绍如下：
歌曲名：SUNNY
歌曲原唱：boney M
发行日期：1976
专辑：《Sunny》
歌词：
Sunny, yesterday my life was filled with rain
Sunny, you smiled at me and really eased the pain
Oh, the dark days are done
The bright days are here
My sunny one shines so sincere
Sunny one so true
I love you
Dusty Springfield
Sunny, thank you for that sunshine bouquet
Sunny, thank you for the love you brought my way
You gave to me your all and all
Now i feel ten feet tall
Sunny one so true
I love you
Sunny, thank you for the truth you let me see
Sunny, thank you for the facts from a to z
My life was torn like windblown sand
And then a rock was formed when we held hands
Sunny one so true
I love you
Sunny, thank for that smile upon your face
Sunny, thank you for that gleam that flows with grace
You're my spark of nature's fire
You're my sweet complete desire
Sunny one so true
I love you
Sunny, yesterday my life was filled with rain
Sunny, you smiled at me and really eased the pain
The dark days are done
The bright days are here
My sunny one shines so sincere
Sunny one so true
Sunny one so true
Sunny one so true
I love you
《Sunny》是boney M 于1976年演唱的一首歌曲，曾经作为《长江七号》的片尾曲和韩国电影（Sunny）的主题曲，俄罗斯电影《跳芭蕾舞的男孩》（我的爸爸巴雷什尼科夫）的插曲。
《长江七号》片尾曲 Bonny M的《Sunny》, 《话说长江》的主题曲是《长江之歌》,《再说长江》的主题曲不是《话说长江》,是根据它改编的。