You light up my life

 

American actress Didi Conn wears a denim vest in the American movie YOU LIGHT UP MY LIFE from 1977. I found the full video anywhere in the WWW, but wasn't able to find it again to link it here. The denim vest sequence is short, only about 2-3 min

Dentyne Gum Commercial

 

A girl named Chrissie wears a blue jean vest with rainbow stitching at her first date in this Dentyne Gum Commercial spot from 1978. Brand of the vintage vest: Faded Glory

It's not easy to compare with actual photos because of the low resolution video clip, but here are some present photos of a woman wearing the same kind of denim vest:

Faded Glory

 

A cute vintage denim vest by Faded Glory. Found in the WWW

Partner look

 

Young woman from Sweden shares her look with her partner. Found in the WWW

Laurie Walters

 

Beautiful American  actress Laurie Walters with denim vest on publicity stills for the American TV-show EIGHT IS ENOUGH. Laurie wore some vests in the episodes of the show, but I have never seen her wearing the denim vest in the show, it seems, that it appeared only on the publicity shots. Found in the WWW

and two more alternative shots from sources with lower resolution:

And the full sources:

Daffi Cramer

 

German singer Daffi Cramer wearing a denim vest on two of her single covers. Found in the WWW