Being a stand up comedian in my opinion would be one of the hardest professions on the planet, but these people made it on the comedy circuit and beyond.
I was living in Nashville, TN, and I had a chance to buy tickets to see Robin Williams and Amy Grant. Amy was from Nashville and had two huge albums in a row and was about to release her biggest album ever. I was there to see her because I had a connection to her with a mutual friend, but I was very excited to see Robin Williams.