In p>28, Justin Bieber was discovered by his agent Scott on YouTube, a video site, and was later trained by Usher to enter the music scene. In 29, he released his first solo album My World. In 21, Justin Bieber won the american music awards Artist of the Year. On August 29th, 211, he attended the 28th MTV Music Video Awards [2] and won the Best Male Singer Video Award [3]. On September 2th, three nominations were made for the best pop singer, the best male singer and the most popular among fans [4]. On November 7th, Bieber won the Best Pop Singer Award and the Best Male Singer Award [5-6]. On December 3rd, Bieber and Usher sang on the same stage in the American Disneyland [7]. In 213, Bieber released a live album "Believe Acoustic" and won the 4th american music awards Best Artist Award for his album "Believe". In 216, he won the 58th Grammy Award for Best Dance Recording with Where Are U Now.