The Flaming Lips’ Yoshimi Battles the Pink Robots shows up on most critics’ lists of the best albums of 2002. I can’t remember if I bought it at the time and didn’t get into it, or if I just intended to buy it and never did. At any rate, it’s still unknown to me.
Yoshimi is a loose concept album about the titular battle, though only a few songs directly tie into that story. The overall theme is making the most of life in the face of our own mortality. Fun stuff!