Carolina Shag is a fifty count partner dance done mostly to slow tempo music (100-150 bpm). During the dance the upper body and hips always move as the legs do convoluted kicks and fancy footwork. The lead is the center of attention, and the follow's steps either mirror the lead's or mark time while the lead shows off with spins and other gyrations. Carolina Shag is the state dance of North Carolina and South Carolina, and is still popular amongst residents of both states.
Carolina Shag can trace its origins to the southern United States during the Big Band Era of the 1930s and 40s. One of the earliest documented references to a dance called "Carolina Shag" appears in a Helen Powell Poole article in 1936. Whether this article refers to an early version of the contemporary dance by the same name is still a matter of debate, as some historians claim that Carolina Shag is a descendant of Carolina Jitterbug, and its predecessor, Little Apple (whose origins can supposedly be traced to Columbia, S.C. in 1937). These historians claim that a slower six-count variation of Carolina Jitterbug (which is 8-count) was what gave rise to contemporary Carolina Shag. Soldiers from the north are said to have influenced its six-count rhythm.
"Shag" itself (when used in reference to American vernacular dances) is a very broad term that denotes a number of swing dances that originated during the early part of the 20th century. Arthur Murray mentioned one form of Shag in his 1937 book "Let's Dance". This article states that shag was known throughout the entire country under various names, like "Flea Hop". And, a New York writer (who is gay) sent to Tulsa, Oklahoma in late 1940/early 1941 noted an "Oklahoma version of shag" done to the Western Swing music of Bob Wills and his Texas Playboys at the Cain's Dancing Academy in Tulsa."