Pearl Jam's "Ten"

Why does the band Pearl Jam have a 1991 album named Ten when there are 11 tracks on it?

Well, the members were big fans of the basketball player Mookie Blaylock, so much so in fact that they wanted to name the album after him. They had some intellectual property rights issues in doing that, so they decided just to name the album after his jersey number, 10.

Thanks to my friend Eli for the random trivia!