Aaron Barschak is the comedian who has plunged our national security into doubt.  His antics have caused questions to be asked right at the top as home-secretary David Blunkett demanded to know how an uninvited comedian dressed as Osama Bin Laden, wearing a pink dress, was able to walk straight into Prince Williams's 21st birthday party and grab the microphone straight off the heir to the throne during his speech.

It was, of course, all a publicity stunt to promote his Edinburgh show, Osama Likes It Hot, which starts its run at the Underbelly Club at the end of July.  It will no doubt work for the first couple of weeks, as tickets are sold on the back of his notoreity. However, the real test will come if people still remember his name after the festival and that will be purely down to whether or not he is actually funny!