Conan O'Brien

For late night host Conan O'Brien, the tragic news of Robin Williams' passing came during the taping for Monday night's broadcast of his TBS show.

In the video below, O'Brien breaks the news to a stunned audience, explaining, "We tape these shows a few hours early and by the time you see this now on TV, I'm sure that you'll know. I'm sorry to anyone in our studio audience that I'm breaking this news. This is absolutely shocking and horrifying and upsetting on every level."

Remembering Robin Williams: Video highlights from his career

A visibly emotional O'Brien went on to salute the beloved comedian, along with guest Will Arnett and sidekick Andy Richter. Watch: