Ryan Daniel Montgomery (born July 5, 1977), better known by his stage name Royce da 5'9", is an American rapper and songwriter.
On November 26, 2002, he released his debut solo album, Rock City. In 2004, he released his second and most critically successful album to date, Death Is Certain, charting with another Premier-produced single, "Hip-Hop". After the relative success of his sophomore effort, Royce put out a third solo project, Independent's Day, in 2005. After his release in 2007, Royce with DJ Premier and Statik Selektah released the mixtape , The Bar Exam. In 2008, He released The Bar Exam 2 with DJ Green Lantern later in the year, as well as a retail version of the mixtape, The Album.
On August 9, 2011, Royce released his fifth album, Success Is Certain. After a few years, Royce put out his sixth album, Layers, on April 15, 2016. The release of his latest album, Book of Ryan, was officially released on May 4, 2018.