I found Rush on my car radio during Desert Storm. I was on my way home from work. After listening to him for a few days, I realized he was saying and thinking the same things I was. He validated my beliefs. I'd never listened to talk radio prior to Rush.
I immediately became a huge Rush fan and while he infuriated me on occasion, he was almost always in the right.
Rush also is responsible for getting me into Christmas music. I remember he used to rave about Mannheim Steamroller so I started buying their Christmas albums. Before long, I was a Christmas music fanatic and have seen Mannheim Steamroller in concert at least 10 times since.