For 15 seasons now, the most tension filled moment in television comes when Ryan Seacrest commands, "Kieran dim the lights" in each week's American Idol-cast, announcing that the fate of the contestants is at hand.

But Kieran Healy is more than the executioner's assistant to what has been the greatest spectacle in television of the past two decades.  As the lighting designer and master of American Idol, he has created the look and feeling to a show and to the individual performances that have captivated millions.

In this first installment of our series "Who Makes Hollywood", we visit with Healy on the set of American Idol as he prepares to wrap what has been a glittering run and he shows us a peek at how the Idol magic was made.

Richard Rushfield is Editor in Chief of Hitfix