John Waters is on The Graham Norton Effect. I love John Waters. He was cool enough to do guest appearances on Homicide and The Simpsons (which is my favorite episode). Point of fact, he played two different characters on Homicide: a bartender that one of the detectives talks to, and a perp who vehemently defends Baltimore. Which is his hometown.
In a strange coincidence, the Homicide John Waters-as-perp episode is on right now. They never rerun Homicide. Except for L&O crossovers. Which this is.