No Lie, this is one of my favorite videos of all time.

Maybe because I've been a Mos Def fan since 98, and probably also because I have trouble thinking of many Alicia Keys songs I don't like.  But primarily, the message of the song is awesome.  To think that you're living in the big city, going about your daily business and you probably pass by dozens if not hundreds of people, and you only really know a few of them, if any.  And you may never know that there was that one shy person who could have totally been the right match.

http://www.youtube.com/watch?v=rJiLcNQdye4