 In December 1999, Bad Boy released Born Again. The album consisted of previously unreleased material mixed with guest appearances including many artists Wallace had never collaborated with in his lifetime. It gained some positive reviews but received criticism for its unlikely pairings; The Source describing it as "compiling some of the most awkward collaborations of his career". Nevertheless, the album sold 2 million copies. Wallace appeared on Michael Jackson's 2001 album, Invincible. Over the course of time, his vocals were heard on hit songs such as "Foolish" by Ashanti and "Realest Niggas" in 2002, and the song "Runnin' (Dying to Live)" with Shakur the following year. In 2005, Duets: The Final Chapter continued the pattern started on Born Again, criticized for the lack of significant vocals by Wallace on some of its songs. Its lead single "Nasty Girl" became Wallace's first UK No. 1 single. Combs and Voletta Wallace have stated the album will be the last release primarily featuring new material.
