1) Lifeforce is a side project from Kahl Hellmer of Machinae Supremacy, back in 2001. The vocalist, Erica Oberg, has more recently done lyrics and vocals for the band Inja. 2) Lifeforce was a vegan straight edge metalcore band from germany with angry vocals and lyrics also with devastating tuned down guitars, in the veins of Earth Crisis (attacking the norm). 3) LifeForce is a heavy metal band from Vitória, ES, Brazil, formed in 2003. Read more about Lifeforce on Last.fm.