iCarly has its first big fan! Her name is Mandy and she totally LOVES iCarly! Carly, Sam and Freddie are impressed by her dedication and so decide to invite her on the show as a guest. But things start to get crazy when Mandy sticks around to hang out with the iCarly gang...and doesn't seem to be leaving anytime soon! Can the iCarly group get rid of Mandy in such a way without losing their biggest fan?