Minecraft - This is Ridiculous

It’s just a ridiculous rave down there. Some FAQs (read these please) Wow over 100K views! WTF SO MANY SLIMES HAXXXXX NOT REALZ OMG?!?!?! This is the first release of slimes - and they spawned in this amount. REGEN HEALTH WHAAA??? WTFBBQ MOBS ON PEACEFUL?!?!?! Peaceful restores health over time. Yes, they also spawned on peaceful. WHERE ARE THEY PLZ? Found them usually near the lava depth. WHATS THIS AWESOME SONG? The song is “Konvolution“ by EON found here