The Billboard 200 is a classification made by the American weekly magazine Billboard magazine, dedicated to the industry of the disc.

It tries to reflect the tendencies by taking of account the 200 best sales of albums on the American ground.

Just after the exit of Blackout of Britney Spears, it changed its method of accounting of the sales, by taking of account the albums only sold by only one store chain. Many calls into question the objectivity of this classification because this coincidence is doubtful, as Rolling Stone stores it.