American folk song of uncertain authorship and origin, with a zillion different verses, depending on who you hear sing it. The song tells the story of a sordid love affair between two people of less than stellar reputations: Frankie is probably a prostitute, and Johnny is a gambler. In her fashion, Frankie is faithful to Johnny, but he's not, so "she shot her man." She usually lives to tell the tale.
Frankie Baker claimed the song was written about her, as she shot her 16-year-old beau in St. Louis in 1899, but the song was reported sung at the siege of Vicksburg (1863), and there are reports of this song going back to 1840. An early attribution points to 1833, when a woman whose first name was Frankie shot her husband, Charles Silver, at Toe River, North Carolina-- although Delta blues scholars scoff at the notion that Mississippi blues players would have written a song about events in North Carolina. In the folk tradition, new verses probably came up everytime a woman shot her man or a woman named Frankie got a hold of the song.