Which came first?

Who Dey gonn get locked up?
Or Who Dat who aint done nothing?

I don't know, but they both look stupid when they lose because the other team throws it in their face. See: YouTube - Steelers Who dey we day

"Phinvader Bill wrote:

The Bengals 'Who Dey?' or the Saint's 'Who Dat?'

I heard the Bengals sohttp://en.wikipedia.org/wiki/Who_Dat%3Fng first, but that doesnt mean anything. Which is the original and which is the rip off?

The chant of "Who dat? Who dat say they gonna beat dem Saints" originated in minstrel shows and vaudeville acts of the late 1800s and early 1900s, and was then taken up by jazz and big band performers in the 1920s and 30s.

The first reference to "Who Dat?" can be found in the 19th Century. A featured song in E.E. Rice's "Summer Night's" is the song "Who Dat Say Chicken In dis Crowd."

"Who dat?" was used as a tag line in the days of Negro minstrel shows. "Who dat?" "Who dat say who dat?" Many different blackfaced gags played off that opening.

http://en.wikipedia.org/wiki/Who_Dat%3F

The Who Dey chant is first known to be used by fans of the 1981 Super Bowl-contending Cincinnati team. It is similar to the phrase "Who Dat", which has been used in minstrel shows and early jazz music in New Orleans since the late 1800s, and was adopted by fans of the New Orleans Saints in 1983 during the tenure of coach Bum Phillips. The marketing team of the Saints officially promoted the term in 1983.

http://en.wikipedia.org/wiki/Who_Dey

Looks like "Who Dat" has been around quite longer, but both are similar and probably IMO are 1 in the same historically just used in the like manner in different regions of the country.