Many women drank, smoked, and danced for the first time in public in. Irving beling"s white christmas one of the most successful songs in the history of popular music. Rock n" roll started elvis"s pelvic movements hound dog 1956. 1930"s, 1940"s radio catered to white rich people. Network linking local and regional stations- programming could be run rom one central location, and it was possible to run live programming from member stations- gave the networks a tremendous range of programming from which to choose. Most music was performed live playing from a record conveyed. Listeners expected everything to be live and in real time. Amos n" andy = biggest comedy show, racial humor, politically incorrect now. Bing crosby unbreakable statistics in pop music modern minstrel, Image of character that is lazy every man; in reality, very hardworking, determined. Blacks, whites and people of all ages liked bing crosby. Aaba form most common pop song design in 1900-1950"s period .