Thicke's earlier records were put out under his last name. He has written the songs of many musicians, including though not limited to Jennifer Hudson, Usher and many more. He was signed to Interscope Records at the age of 16. His first album was released in 2003. His second album was released in 2006. It was much more successful and sold 1.5 million copies. In 2013 it was reported that Thicke wrote, directed, and acts in a short film called Mercy. Thicke's single "Blurred Lines" sold more than any other song in 2013.