Interesting Question about songs asociated with different orgs. If I may weigh in....
In the west TN area in the Mid to Late 90's, the songs go as follows:
Alpha Phi Alpha- "Flashlight" by Parliament/Funhadelic (had our own stroll and everything)
Omega Psi Phi- "Atomic Dog" by George Clinton
Kappa Alpha Psi- "Set it Off" by Organized Confusion (for those who don't know, J-Lo sampled it in her song with Big Pun and Fat Joe, as well as the song "I like Dem Gurls" samples it too)
Phi Beta Sigma-?
Iota Phi Theta-?
As for sororities, it was more like whatever popular R&B song was out at the time. But when I was in school at Morehouse, the Zetas used "Don't Ride the White Horse" alot at parties.
This also varies from region to region, because when I came to grad school in Missouri, the Kappas use "Freaks of the Industry" by Digital underground up here, and some Alphas in the Midwest use "More Bounce to the Ounce" by Zapp or "You Got's ta Chill" by EPMD. To each his Own. I'm trying to bring back the old school by making up a stroll to"Jungle Boogie" by Kool and the Gang or "Jungle Love" by Morris Day and the Time!!!
Just My '06 sense worth
BlackWatch!!!