Toooo hard lol no fair.. I'd need to choose a thousand at least :P I can think of many that I love, and many more that have a personal significance but I don't think they define me, or even most of me.. The only one I can think of at the moment is Verve and not because I like it, I do but also find it irritating as I have it on almost every CD i have made for the car... but because it has a line which goes, I'm a million different people from one day to the next and I think *that* is me :)