From Denmark to Østtyskland

 

Young danish woman Alice Persson came to Eastern Berlin in the 1970s and also matched the denim on denim look there in the German Democratic Republic. Found WWW

https://www.dr.dk/nyheder/webfeature/berlin

Kim Morrison

 

Kim Morrison was an American country music singer. She appeared with denim vest on a 1970s promo picture. Found in the WWW

Charlotte Ribbelink

 

The 1970s were also famous for the Pirate Radio era. Charlotte Ribbelink was part of the Offshore Radio Team of Radio Caroline in 1973, when she was photographed wearing an early denim vest. Found in the WWW

Boy of the week - dk

 

JoJo Billingsley

 

American singer Deborah Jo Billingsley (JoJo) was one of the Honkettes, the female background choir of Lynyrd Skynyrd. Sometimes she wore a blue denim vest. Found in the WWW

Lena Zavaroni

 

British singers Lena Zavaroni and Bonnie Langford clothed in denim on denim around 1978. They appeared in a British tv-show (The Lena and Bonnie Show). Found in the WWW

Country Giants

 

Country Giants was a Country Music compilation album series from the 1970s. The second edition has been published in 1972 with a woman in blue jeans and denim waistcoat on the cover. I don't know, who the model on the cover is, but I like her.