Justin Bieber Biggest Fan Contest at MTV

Are you Justin Bieber's biggest fan? Do you know every word to all of his songs? Is your room plastered with Bieber posters? Well, we want you to prove your fandom — and reward it with a prize from the star himself!All you have to do is head over toYour.MTV.com and upload a video of yourself telling and showing why you are the biggest Justin Bieber fan on the planet. We'll then take a look and