Released on The Ultimate Sin, "Killer Of Giants" stands as a defining track in Ozzy Osbourne's discography, showcasing his evolution from hard rock to heavy metal during the mid-1980s. The song features Osbourne's signature raw vocals and aggressive delivery, supported by a driving rhythm section that typifies the era's power metal sound. As a staple of his live performances and a key component of his broader body of work, the recording captures the intensity and theatricality that became hallmarks of his career. It remains a significant song in his catalogue, reflecting the musical landscape of the time and cementing his status as a pioneering figure in heavy metal history.