with Usher and Ludacris. "It was quite a process to do," Lil Jon said. "It was a lot of hard work. It was a lot of figuring out the proper setlists. I think we were up to like 180 different ...

On Friday, Lil Jon — who acted as musical director of the performance and appearing for "Turn Down for What" and "Yeah!" — opened up about the "hardest part" of putting together Usher's set on ...