What song must be in every metal playlist?

If we're talking about a proper metal playlist, you absolutely can't skip "Master of Puppets" by Metallica. Honestly, it’s like the gold standard for anyone trying to get into the genre. I remember blasting that track on repeat back when I was younger, and it still hits just as hard today. It’s got that perfect blend of aggression and technical skill that just makes you wanna headbang immediately.

Another one that honestly needs to be there is "Painkiller" by Judas Priest. It’s got that high-energy, classic feel that just sets the mood right. Whenever I'm having a long day at work or just need to blow off some steam while listening to music, that song always finds its way into my queue. It's just one of those tracks that defines the whole vibe of heavy metal, you know?