"Lava Chicken" refers to both a cover of "Steve's Lava Chicken" composed by Hyper Potions, and a music disc that plays the song when inserted in a jukebox. The music disc is obtained by killing chicken jockeys.
Obtaining
Mob loot
The "Lava Chicken" music disc is dropped by baby zombies currently riding a chicken (i.e. a basic chicken jockey) when killed by a player or a tamed wolf. Due to a bug in Bedrock Edition, husk and zombie villager chicken jockeys also drop the disc in that edition.[1][2] Although baby zombies can ride other mobs in Bedrock Edition, they only drop the disc if riding a chicken. If the chicken is killed first, the zombie previously riding said chicken does not drop the disc afterwards, though the zombie will still drop the disc if it is killed during the chicken's death animation. The disc is also never dropped by killing the chicken.
Previews of tracks in Minecraft have been shortened to 30 seconds on this wiki in accordance with fair use rationale. "11" and "Magnetic Circuit" are exempt from this.
"Lava Chicken" is a cover of "Steve's Lava Chicken". The track begins with a chiptune rendition of the main melody, along with note-block-esque percussion before more electronica instruments are added. At 0:46, villager sound effects begin playing the melody, and the original instruments continue playing them, but are moved to the background. At 1:13, the villager sound effects and some of the instruments playing the main melody stop. A simplified version of the main melody is then played until 1:25. At 1:25, the instruments that were playing from 1:13 to 1:25 stop, and a new instrument starts playing just the main melody. At 1:31, some instruments are added in to prepare for a drop. At 1:37, the drop happens, and the villager sound effects return. At 2:00, the villager sound effects stop again, except for some faint villager hurt noises in the background. Then another drop happens at 2:14 and the song ends.