I'm not talking about songs that you think are the best or anything, I'm talking about songs that are incredibly famous yet people just don't seem to know. I used to think that, for example, everyone knew the song With or Without You by U2. I've been shocked over the past years to find that there are so many people who simply don't know the song by title - and even more shocked to find that, upon receiving this song, they still don't know what it is. I was baffled! But oh well. Anyway, have you had any similar experiences? And please try to avoid recent big hits by American / British bands that are obviously big in one country but aren't really outside that country. I'm talking about extremely, extremely famous songs that have been well known on a global scale.