Unlike in burlesque theater, the modern popular form of strip theater can minimize the interaction of customer and dancer, reducing the importance of "tease" in the performance in favor of speed to undress. Most clubs have a dancer rotation where each dancer, in turn, will perform for one or more songs in a fixed sequence that repeats during a shift. Less formal clubs will have dancers take turns when a stage becomes empty or have a free flow of entertainers where the stage has any number of entertainers who wander off and on at will. Featured entertainers are not usually part of the rotation and they generally have set times when they will perform that are advertised throughout the shift. If a DJ is present, he or she will emcee the rotation and typically announce the current dancer(s) on stage and possibly whom to expect in future sets.