Adult Swim reveal another new teaser ahead of 'Metalocalypse: Army of the Doomstar' release

Adult Swim has revealed yet another Metalocalypse teaser before the full movie's release on Digital and on Blu-ray Disc August 22, with pre-orders available here. The newly released clip features Dethklok as they seek the help of the Song Guru to strengthen their musical resolve and help them to write the "Song of Salvation." 

In the clip, we see Dethklok vocalist Nathan Explosion as he undergoes a training montage under the tutelage of the Song Guru, as well as guitarist Toki Wartooth showing the band the magic of a guitar tuner.

The teaser was originally premiered via Ultimate Guitar, hence the guitar tuner focus in this clip.