Hmmmm, lemme see...
Kirk Franklin
Salvador
Cammie or Carrie something
a whole bunch of other people I saw (it was different groups every night over the course of a week)
Ludacris
Jermaine Dupri
Chingy
John P. Kee
Nsync
Ino J
98 degrees
PM Dawn
Jennifer Paige
TLC (one of the best nights of my life!)
Blaque
Christina Aguilera
Then there's all the misc. concerts where there was nobody famous, but still a good night.