Bieber's career pretty much collapsed in the past year. Here's why
1. His fans are growing up. Most of Bieber's fans were just about turning 13 around the time he burst onto the scene. They should be 17 at this point in time. Most Beliebers grow out of him at sometime between 16 and 17.
2. His public image has been destroyed. Bieber's breakdown in the UK, the Anne Frank controversy, and the Brothel incident are just 3 of many news stories that are making him the most hated celebrity in the world, with only Kim Kardashian, Kanye West, and Miley Cyrus possibly rivaling him for that title.
3. One Direction has taken his spot in the teen world. Last year, 1D and Bieber were pretty much neck-a-neck as far a commercial success is concerned. However, the first effects of 1D could be see when Bieber had a lower than expected first week of 375k in the U.S. It wasn't until Take Me Home surpassed the sales of Believe, and more importantly doing so in only 7 weeks, that 1D could make a claim to the throne.