The Foo Fighter's have been teasing an eighth studio for quiet some time but now there's actual proof! Check out the above 8 second clip which the band released on 8/8.The theme of 'Eight' runs ramped through this album and it's process. For this eighth studio album the Foo's recorded eight songs in eight cities which was all documented for an eight episode mini series on HBO. And although the band set the tease to excite fans they stated the album isn't nearly finished. In the mean time make sure you check out the making of the album by watching 'Sonic Highways' premiering October 17th on HBO.