Whaddya mean you don't know Martha & Tena

Greek sisters Martha & Tena Elefteriadu were all the rage in the Czech Republic back in the mid 60s and early 70s.

That time Gustav Brom hosted a Czech musical variety TV show in 1972

Czech jazz bandleader Gustav Brom is joined by Helena Blehárová, Martha & Tena, Vladka Pavlíčková and Milan Černohouz.