Boogie Chillen or Chillun was part of a trend in the late 1940s to a new style of urban electric blues. Although it is called a boogie, it resembles early North Mississippi Hill country blues rather than the boogie-woogie piano-derived style of the 1930s and 1940s. Hooker gave credit to his stepfather, Will Moore, who taught him the rhythm of "Boogie Chillen'" ("chillen'" is a phonetic approximation of Hooker's pronunciation of "children") when he was a teenager.