This may be the ultimate burn! In a hysterical mash-up video that is now going viral, comedian Louis C.K. unknowingly disses his 'American Hustle' co-star Bradley Cooper back in a 2008 interview. At the time, the comedian claimed that the aspiring actors in the 'Inside the Actors Studio' audience who ask questions to the likes of Sean Penn never become famous themselves. Little did he know that Bradley Cooper had done just that -- and now look at him!