2 films match Deathgasm

Two teenage boys unwittingly summon an ancient evil entity known as The Blind One by delving into black magic while trying to escape their mundane lives. (imdb)

When Brodie, a washed-up metalhead, resurrects his dead bandmates for a battle-of-the-bands, the result unleashes riffs, gore, and apocalyptic carnage only DEATHGASM can deliver.