Actual size of sticker-Transformer JAZZ. Jazz was among the Autobots who followed Optimus Prime on his mission on board the Ark. They were attacked by Megatron's ship, the Nemesis, and crash landed on Earth, where all on board were preserved in emergency stasis. Four million years later, in 1984, a volcanic eruption awakened the Ark's computer, Teletran-I, and it repaired all on board. It reformatted Jazz in the form of an Earth race car. Jazz than became a regular character throughout the show's first two seasons acting like Optimus Prime's second in command(Ironhide and Prowl seemed to share this role with him though).