In June 2021, who was the longest-working late-night talk show host in the United States?

In June 2021, who was the longest-working late-night talk show host in the United States?

With the retirement of David Letterman in 2015, Conan O’Brien became the longest-working of all current late-night talk show hosts in the United States, with his nearly 28 years lasting run ending in June 2021._x000D_

Conan News Fact:

_x000D_TBS announced that “Conan” will end on June 24, 2021. Jack Black will be the show’s final guest. O’Brien is planning a weekly variety show on HBO Max and focusing more on his podcast and travel shows.