If Bieber is in 2K13 I will let Kwame Brown dunk on him, record the video and make a 10 hour video of the clip playing over and over again, upload it to YouTube and hope that it will have more number of viewers than his Baby music video.
You could make the game slightly more interesting and put Nate Robinson or Earl Boykins against Bieber... but I'm guessing the point would be to make the game as one-sided as possible.