Andy Cohen's joke about Kathy Griffin landed him in some hot water. Last week, the "Watch What Happens Live" host pulled a Mariah Carey when asked about Griffin. A TMZ photographer asked Cohen if he had spoken to Griffin since being announced as her replacement to cohost Anderson Cooper?s New Year?s Eve special on CNN. Cohen quoted an infamous Carey line, and said "Who? I don't know her." Griffin responded to the video on concours-twitter.htm">twitter and called out her former boss.