Volunteer coordinators for most regional events will have some say as to who is hired/volunteered to be the DJ. There is an official approved music list each year that is shared with the DJ and there is a conference call training scheduled in which the DJ may or may not participate.
A more direct route to have your issue considered is to chat with your regional director or volunteer coordinator. C.D. is too broad of a mouthpiece for an issue with one or two regional events.
Cooton Eyed Joe, YMCA, Chicken Dance et cetera are often go to songs to fill voids created by technical delays or otherwise.
There is some art and science to this whole deal which may or may not be applied correctly for all tastes. User experiences my vary
