Hooker's recording career began in 1948, when Modern Records, based in Los Angeles, released a demo he had recorded for Bernie Besman in Detroit. The single, "Boogie Chillen'", became a hit and the best-selling race record of 1949. Despite being illiterate, Hooker was a prolific lyricist. In addition to adapting traditional blues lyrics, he composed original songs. In the 1950s, like many black Musicians, Hooker earned little from record sales, and so he often recorded variations of his songs for different studios for an up-front fee. To evade his recording contract, he used various pseudonyms, including John Lee Booker (for Chess Records and Chance Records in 1951–1952), Johnny Lee (for De Luxe Records in 1953–1954), John Lee, John Lee Cooker, Texas Slim, Delta John, Birmingham Sam and his Magic Guitar, Johnny Williams, and the Boogie Man.