After announcing their fall tour this past Tuesday and then immediately beginning another mysterious countdown, Pearl Jam revealed yesterday that the newest clock was for the introduction of their upcoming tenth studio album Lightning Bolt. The album is set to release this October 15. The album is currently available for pre-order and you can purchase a CD here. The album, the band’s first since 2009′s Backspacer, will be produced by hard rock mixing mastermind Brendan O’Brien. Mark your calendars, people.