1 Justin Bieber(Singer-Songwriter and One of the Best-Selling Pop Music Artists of All Time)
Canadian singer and songwriter Justin Bieber was discovered via YouTube and subsequently went on to become a teen pop sensation. By age 25 he became the youngest solo artist to achieve seven number-one albums in the US. Bieber has received many accolades, including a Grammy Award. He’s also had his share of controversies and run-in with the law.