The original title for kill em ALL?

The original title for Metallica's debut album "Kill 'Em All" was "Metal Up Your Ass." This title was ultimately rejected due to concerns from their record label about its provocative nature. The band opted for "Kill 'Em All" instead, which still conveyed a strong, aggressive attitude reflective of their music style. The change marked a significant step in shaping Metallica's identity in the heavy metal scene.