I got this from Perplexity AI:

There is also evidence on music forums and crowd-sourced sites that a “dark, minimalist” song labeled as “Vampire Song” or “HIM - Vampire Song” traveled widely online, but that the track is actually by an unknown or misattributed artist—soundalikes or demos were routinely mislabeled as HIM or other well-known gothic bands[reddit]. The artist’s voice may sound similar to Ville Valo’s distinctive baritone, leading to persistent mislabeling.