Marty O'Donnell has been composing for various forms of media for years, whether it's the Flintstones Vitamins jingle or the iconic Halo theme. His newest project is Halo: Reach, the subject of our month-long coverage. Take a look at the video below to watch Marty as he scores the trailer for Reach's debut on the Spike Video Game Awards. You can also check out our in-depth Q&A with Marty here.