There was a song performed by a group of extraordinary african-american singers (they were several, like 6 o 8 people in total, males and females) around 1978-79, I don't know the title or the group's name, but part of the lyrics are like this:
You'll never know how much I want you
You'll never know how much I care
You'll never know how much I love you
You'll never know how much, how much
how much, how much, how much, how much how much...
Can you get me the name of the group and the tilte of the song???
Thank you guys





