Gunfire erupted early Saturday at an Atlanta nightclub party sponsored by Jermaine Dupri and attended by music stars Usher, Nelly and Sean "Diddy" Combs. A security guard was reportedly wounded. It was stated that the party is in the go when a shot was heard by the guests. It was also reported that an announcement was made that the sound was not a gunshot but a bottle just popping or a speaker problem, but the entire guests including the celebs were still trying to leave. The security guard was shot in the arm and was treated at a hospital and was released after the treatment. Oh My!!!! Usher be safe!!!!