Have you ever gotten someone interested in music they might not have otherwise liked (what was it)?

I was listening to this piece (“Gloria” from Misa Criolla by Ariel Ramirez) in my car:

http://www.youtube.com/watch?v=4QYropSEri4&fmt=18

My friend loved it and asked me to rip the mp3 of it and give it to him. I think that’s so cool. I would never have pictured him liking Spanish classical choral music. And of course numerous times my friends have inspired me to like music I wasn’t that interested in before.