What is the Popular Front? OA. The Popular Front was an alliance of leftist organizations committed to pacifism and non- violent support of the Soviet Union. OB. The Popular Front is an organization of folklorists, ethnomusicologists, and culture workers who believed that popular music should be included as part of American folk music C. The Popular Front was a grass roots organization that worked to preserve our vanishing folk heritage. OD. The Popular Front was an alliance of leftist organizations that agreed to set aside various political struggles in order to join together in the fight against Hitler and fascism.