Relapse is the sixth studio album by American rapper Eminem. It was released by record label Interscope Records, along with subsidiaries Aftermath Entertainment and Shady Records,first on May 15, 2009, followed by May 19 in the United States. Relapse is Eminem's first studio album since Encore in 2004, thus ending the rapper's musical hiatus.The album debuted at number one on the Billboard 200, selling 608,000 copies in its first week of release.Not only was it the biggest opening for any album this year so far, but it was also the best since AC/DC's Black Ice, which sold 784,000 copies in its first week in October 2008.Although it is noted to have moved less units in it's first week than his previous album Encore.