Ogre - Plague of the Planet (2008)^{Release ID: 16720}

It takes some balls to make a metal concept album, especially when it consists of just one 37 minute track with an environmentalist message (and giant robots), but these guys have made a record that is not just one of my favourite stoner metal albums, but one of my all-time favourites. With some serious grooves and killer riffs it never becomes boring or repetitive. Also a special mention for Ed Cunningham's vocal performance that is probably not what this band are noted for, but here it really hits the spot. If you only ever buy one stoner concept album then make it this one.