10. Joan Rivers
Can we talk about the grand dame of comedy? Joan Rivers made history into herstory as the permanent guest host on The Tonight Show when Johnny couldn’t be there. She was laugh out loud funny and she broke rules we all wanted to do away with. At the news of her recent death, Andy Cohen tweeted, “Heaven just got a whole lot funnier. #RIPJoan,” and Conan O’Brien said, of Joan Rivers guest hosting The Tonight Show, “When she did, it was an event. Everybody in the country would talk about it the next day. It’s hard to explain to people today what an event that was. People would gather in the living room and at that time she was so outrageous, her comedy felt so out of the bounds and people were just blown away.”