bind a click then continue

bind a click then continue

Hi all,
I'm looking for a way to catch a click on a link, show a popup message then... continue with the action.

I have this:
  1.     $('.hook a').click(function(event){
  2.     event.preventDefault();
  3.     alert("hello!");
  4.     $(this).trigger('click');
  5.   });
And this (obviously) go into an infinite loop.
how can I solve this isue?

Thanks to all.