<p>I would suggest you not focus on the famous person. Top universities, such as Stanford and Columbia, have the famous persons themselves applying so they are not swayed by namedropping. As for video/audio, check the college's requirements. Some allow additional materials and some do not. Yale, I believe, accepts CDs even from non-music majors. Stanford is strict about limiting extraneous materials. But you need to check each school's rules. If you can, under the college's rules, send either an audio or video, it would be a great addition to your application.<br>
I don't know how your grades/scores are, but if you are also a top student, your rock band will make you stand out even more.</p>