Character description from "tech spec:
Autobot Jazz and his brother Ricochet serve as Optimus Prime's powerful and merciless bodyguards.  while the Seeker unit is designed to hunt down and destroy targets, Jazz and Ricochet stay with Optimus Prime to protect him against any and all threats.  Jazz is one of Optimus Prime's most loyal and trusted aides.  He only wishes to serve the glorius future that Optims laid out for the Autobots and he is completely convinced of his cause.  Recently, Jazz intercepted a series of transmissioins from a planet called earth.  While garbled, he managed to decode and translate just enough to become enamored with the planet's culture.  As a result, he gave himself a new design pattern with his own special modifications.  Everything he does has to be with style, from talking to simply transforming.  While Optimus Prime finds this behavior strange, he allows Jazz some latitude from standard Autobot military practice as longs as he remains loyal to him.

Bibliography of significant appearances: All characters of the Botcon 2008, "Shattered Universe" are personas existing in an alternate reality.  Their story was featured in the 2008 convention comic, several of the Transformers Collector Club comics and a few prose-only stories including "Dungeons & Dinobots." 

Other appearances: