Human Clay is the second studio album by American rock band Creed, released on September 28, 1999 through Wind-Up Records. This was the final album until 2009's Full Circle to feature Brian Marshall on bass guitar; he departed from the band shortly after the tour for the album in August 2000. The album has sold over 11.5 million copies in the United States alone and over 20 million worldwide, making it the best selling album of Creed's career and one of the best-selling albums in the United States. At approximately 56 minutes long, it is the longest studio album by Creed.