The term 'Letterman Competitor' refers to Jay LENO, a comedian and television host who was the main competitor of David Letterman in the late night talk show genre. LENO hosted 'The Tonight Show' from 1992 to 2014, while Letterman hosted 'Late Night' and 'The Late Show' from 1982 to 2015. LENO and Letterman were two of the most popular late night hosts in the United States for many years, and their rivalry was often referred to as the 'Late Night Wars'.