I have always been a big fan of Bill Cosby, and as everyone knows, he has a very distinct way of talking when he's telling his jokes. It is therefore no surprise that Bill Cosby is one of the most popular celebrities that people often impersonate. When Nick Cannon was on Late Night with Jimmy Fallon last month, Nick Cannon was talking about his early days in stand up, and how he used to do many celebrity impressions, including Bill Cosby. Jimmy Fallon said he does an impression of Bill Cosby too, so they decide to do Bill Cosby interviewing Bill Cosby. Who do you think does the best Cosby?