No Charge :-)

Plot
A young boy hands his mother an itemized list of charges he says he's owed for performing various chores and comes to collect; the singer performs this in spoken word. The mother responds (singing) by reminding her son about all the things she's done for him, that she never asked him to pay for services rendered and that, all things considered, "the cost of real love is no charge."

Enlightened, the young boy realizes that his mother is right and forgives the charges (once again, narrated) before the singer sings the moral. "No Charge" was one of the few songs that talked about motherhood during this time, which might be one of the reasons why it was so popular. [link to en.wikipedia.org]