Thanks to Cartoon Network's The Amazing World Of Gumball, we now have a brief video that explains the differences between grindcore, black metal, viking metal, as well as how metalheads just “pretend to be hardcore but they're just hippies who like leather.” Honestly, this is one of the greatest things I've seen in a children's cartoon since System Of A Down were featured in that adorable new movie, The Secret Life Of Pets.

Read more: Two grown men play thrash metal on children’s instruments, still shred