The term 'A-Listers' is used to refer to a group of people who are considered to be the most influential and successful in their respective fields. This group includes individuals such as celebrities, STARS, and elites. The acronym INS stands for 'Influential Notables', ELITE for 'Exceptional Leaders In Their Environment', CELEBS for 'Celebrities', and STARS for 'Super Talented Actors and Recording STARS'. Together, these terms refer to a select group of people who have achieved success and fame in their respective fields.