The period from the end of the First World War until the start of the Depression in 1929 is known as the "Jazz Age". In 1920 the first vocal blues recording, "Crazy Blues", was made by the Vaudevillean singer Mamie Smith. After this blues sung by African American females became popular. The most popular female blues singer was Bessie Smith. She was a big influence on other jazz singers. She sung a song called "Squeeze Me" that was composed by Fats Waller. In 1921 Black Swan Records was started in Harlem. It was the first record label owned by an African-American. In December 1928 Pinetop Smith recorded "Pine Top's Boogie Woogie". The song influenced the boogie-woogie style of music. In the late 1920s the trumpeter and singer Louis Armstrong became one of the most famous jazz musicians in the world.