John the Conqueror, also known as High John the Conqueror, John de Conquer, and many other folk variants, is a folk hero from African-American folklore. He is associated with a certain root, the John the Conqueror root, or John the Conqueroo, to which magical powers are ascribed in American folklore, especially among the hoodoo tradition of folk magic. Bo Diddley mentions him as Johnny Cocheroo pronounced Johnny Conqueroo in the song "I'm a Man". "I think I'll go down/To old Kansas too/I'm gonna bring back my second cousin/That little Johnny Conqueroo"
John the Conqueror was an African prince who was sold as a slave in the Americas. Despite his enslavement, his spirit was never broken and he survived in folklore as a sort of a trickster figure, because of the tricks he played to evade his masters. Joel Chandler Harris's Br'er Rabbit of the Uncle Remus stories is said to be patterned after High John the Conqueror. Zora Neale Hurston wrote of his adventures ("High John de Conquer") in her collection of folklore, The Sanctified Church.
In one traditional John the Conqueror story told by Virginia Hamilton, and probably based on "Jean, the Soldier, and Eulalie, the Devil's Daughter", John falls in love with the Devil's daughter. The Devil sets John a number of impossible tasks: he must clear sixty acres (25 ha) of land in half a day, and then sow it with corn and reap it in the other half a day. The Devil's daughter furnishes John with a magical axe and plow that get these impossible tasks done, but warns John that her father the Devil means to kill him even if he performs them. John and the Devil's daughter steal the Devil's own horses; the Devil pursues them, but they escape his clutches by shape-shifting.