Jazz is an Autobot and the First Lieutenant of Optimus Prime in Michael Bay's Transformers. He is known to be happy-go-lucky and very talkative, a decent contrast to the serious demeanour of Optimus. Though the smallest of the Autobots that Prime led to Earth, Jazz is also the most cool-headed and gutsy. Fortunately, he also possesses the skill to back up his bravado. Jazz served a sentry role alongside Prowl operating under the command of Lord Protector Megatron. In this role he seemed to liais