The Oak Ridge Boys perform a concert at the Crystal Grand Music Theatre in Wisconsin Dells, bringing their long-running country and gospel vocal harmony show to the intimate, theater-style venue. The group is known for decades-spanning hits and close four-part harmonies, making this performance a showcase of familiar classics and crowd-pleasing arrangements in a setting designed to give every seat a clear view. The Crystal Grand’s architecture and image-magnification system enhance the live experience for fans of traditional country and vocal quartet music.