Topic summary
Followspot
Extracted from the Wikipedia article Spotlight (theatre lighting).
A spotlight (or followspot) is a powerful stage lighting instrument which projects a bright beam of light onto a performance space. Spotlights are controlled by a spotlight operator who tracks actors around the stage. Spotlights are most commonly used in concerts, musicals and large-scale presentations in which highlighting a specific mobile individual is critical. Spotlights are sometimes located overhead on catwalks. In some theatres, they may also be located in the control booth or purpose-built "spot booths" in addition to the catwalk.