Intense or excessive admiration for a hero or a person regarded as a hero. great admiration for someone who is thought to be very brave, good, skilful etc - often used to show disapproval
idolize: love unquestioningly and uncritically or to excess; venerate as an idol; "Many teenagers idolized the Beatles"
If you hero-worship someone, you admire them a great deal and think they are special or perfect. He was amused by the way younger actors started to hero-worship and copy him
Hero-worship is a very great admiration of someone and a belief that they are special or perfect. Singer Brett Anderson inspires old-fashioned hero-worship