"Iko Iko" (/ˈaɪkoʊ ˈaɪkoʊ/) is a much-covered New Orleans song that tells of a parade collision between two tribes of Mardi Gras Indians and the traditional confrontation. The song, under the original title "Jock-A-Mo", was written and released as a single in 1953 by Sugar Boy and his Cane Cutters that failed to make the charts. The song first became popular in 1965 by the female pop group The Dixie Cups, who scored an international hit with "Iko Iko". In 1967 as part of a lawsuit settlement between "Sugar Boy" James Crawford and the Dixie Cups, the trio were given part songwriting credit to the song. In 1972, Dr. John had a minor hit with his version of "Iko Iko". The most successful charting version in the UK was recorded by Scottish singer Natasha England who took her 1982 version into the top 10. "Iko Iko" became an international hit again twice more, the first being the Belle Stars in June 1982 and again with Captain Jack in 2001.

The song was originally recorded by and released as a single in November 1953 by James Crawford as "Sugar Boy and his Cane Cutters", on Checker Records (Checker 787). The single features Dave Lastie on tenor saxophone. Crawford's version of the song did not make the charts. The story tells of a "spy boy" (i.e. a lookout for one band of Indians) encountering the "flag boy" or guidon carrier for another "tribe". He threatens to "set the flag on fire". Crawford set phrases chanted by Mardi Gras Indians to music for the song. Crawford himself states that he has no idea what the words mean, and that he originally sang the phrase "Chock-a-mo", but the title was misheard by Chess Records and Checker Records president Leonard Chess, who misspelled it as "Jock-a-mo" for the record's release.

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