This is a Soviet Era Music video about an American guy who liked Beatles and Rolling Stones, came to USSR and spent time singing with Soviet brothers, but then got a letter from USA ordering him to return to USA sign to Army and depart to Vietnam War. So he did and then got killed. Some sort of a tradegy but look how does they sing!
By the way during the Soviet Era the state had a grip on all the music bands. You couldn’t start a band without getting an approval from a special comittee, and if you were planning to play some rock’n’roll you never got the approval.
So this was a band with a license from a state.