Contemporary R&B and urban pop became popular throughout the 1990s, but was overshadowed by more pop-rock and dance music by the second half of the decade. Michael Jackson achieved continued critical and commercial success in the 1990s with his 1991 album "Dangerous" which sold 32 million copies and his 1995 follow-up ' which sold 20 million copies. Jackson's debut single "Black or White" from the former album was one of the best selling singles of the 1990s, and the debut single "You Are Not Alone" from the latter album became, on 2 September 1995, the first single to debut at number one on the "Billboard" Hot 100 chart. In 1997, Jackson released ' which became the best-selling remix album of all time, a record it still holds with over six million copies sold.