When recent birthday boy Dave Grohl rejoined Queens of the Stone Age as a guest drummer on last year’s …Like Clockwork, Josh Homme and co. announced it with a Twitpic of their soundboard. Now, as Grohl’s Foo Fighters prepare to unleash their eighth album, the band has taken to Instagram with a photo of their master tapes. Oh yeah, and a three-word caption: “It’s F—king ON,” the band wrote late yesterday (via MTV).

Sure, Grohl might just be trying to distract from the tapes of his pre-Nirvana band Dain Bramage that have recently surfaced online, but the image comes at an auspicious time for the Foos. After a pizza-restaurant warm-up gig and a pair of shows in Mexico City, the rock heavyweights are booked for a Super Bowl weekend concert, plus a set at Firefly Music Festival 2014. In August, Grohl told SPIN the band was already recording its follow-up to 2011’s Wasting Light — and on the console immortalized in his Sound City documentary, no less.

Also promised for LP No. 8: a “little secret,” which remains as yet unrevealed. The suspense, it’s suspenseful!