The Beatles: Rock Band will get a hot DLC injection tomorrow when Sgt. Pepper's Lonely Hearts Club Band releases as downloadable content. In preparation for the arrival of these new tracks, MTV has passed along the above trailer which offers a brief sample of new tracks in the Sgt. Pepper's Lonely Hearts Club album mixed together with some found on the disc. In the end, the video saves us all precious time we would've had to use sampling tracks on YouTube and, inevitably, watching Pomplamoose videos.