Pearl Jam hid 9 pieces of album artwork all over the internet, from the upcoming LP "Backspacer." I did most of the work for you, links to seven of the nine are posted farther down. If anyone finds the last two, please post them in the comments section, I'd appreciate it.
Via Rolling Stone:
For Backspacer’s artwork, the band enlisted their friend and political cartoonist Tom Tomorrow (of "This Modern World" fame)There is some extra incentive for fans to scour the ‘Net looking for the remaining Backspacer art: Once fans find the other eight images, they’ll nab a “free download.” Also, the Backspacer art gallery (click the image to go there) is currently streaming the album’s first single “The Fixer.”
After clicking on each link, clicking on the image will take you to the band's Web site and automatically fills in the blanks.
Being a former giant Pearl Jam fan who has recently become rather ambivalent about a bunch of aging grungsters who haven't made a compelling album in 10 years (no, I was not swept up by the Pearl Jam-is-back hype of aught-6), I'm having a hard time working up enthusiasm for the new album. Though, I do still enjoy the band's old work, and will probably buy it out of loyalty and obligation.