The show has been on air since 2003.
He shares the story of a gay friend who died by suicide.
Megan Mullally went on The Ellen Degeneres Show to talk about the episode.
"I’m very single. We can mention that," the Tony Winner added.
Thanks to a hilarious new meme, people on the internet are living out their fantasies of being a guest on Ellen's show.
So who will replace Hart this coming February?