Asher Roth might be one of the biggest breakout stars of the year. His hit “I 爱情 College” made him into an instant cult hero on the 大学 circuit, and his significant skills on the microphone have allowed him to team up with some of the best in the business. One particular tag team that might not be as expected? Justin Bieber, the 15-year-old singer who took the 音乐 world 由 storm with a series of online 视频 and a commitment to Twitter. Roth and Bieber share a manager, and he 说 that the two of them first moved to Atlanta around the same time, which lead to an interesting...