There were two songs titled "New Orleans Lady and 1 song titled "New Orleans Ladies" (plural) that I am familiar with, one a rock song by EasyChair, the other a country song by Andy Griggs, but the most popular and the one you are asking about was recorded by the band Louisiana's LeRoux.
I found this in my Music Database which consist of around 8 million songs, plus I was a professional drummer from 1972 until I semi-retired in 1995; I now own a recording studio and production company outside Raleigh, NC.
Don
Louisiana LeRoux
City of New Orleans
New Orleans Ladies Stakes was created in 2010.
Leon Medica and Hoyt Garrick wrote "New Orleans Ladies" which was on the 1978 album Louisiana's LeRoux.
Johnny Horton
Johnny Horton
George Melly sang a version of this.
There is a song of that title by Steven Benjamin Goodmanmade famous by Arlo Guthrie. The song is about a train that travels from from Chicago to New Orleans.
If you mean the song "House of the Rising Sun", the first line in the song is: "There is a house in New Orleans". New Orleans is in Louisiana.
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Bruno mars
Rev Theory
Who Dat