On the strength of that single and follow-up singles like "Shut Up", "Elephunk" went on to sell 8.5 million copies worldwide. During this time, Will recorded a second solo album, "Must B 21". In 2002, Will recorded the song "Secrets" for the soundtrack to "", a musical accompaniment to the Cartoon Network original series. Prior to this, he had also composed the theme music for another Genndy Tartakovsky series, "Samurai Jack". In November 2003, work began on a fourth Black Eyed Peas album, entitled "Monkey Business", the second album with new band member Fergie. Upon the success of "Monkey Business", which was released in 2005, the album was certified three times Platinum by the RIAA in the U.S. and has sold over 10 million copies worldwide. The Canadian Recording Industry Association (or CRIA) has certified "Monkey Business" 6x Platinum, with sales of over 600,000 copies. The Australian Recording Industry Association (or ARIA) has also certified "Monkey Business" 6x Platinum, denoting sales of over 420,000 copies. The album's tracks earned the group four 2006 Grammy Award nominations and they also won the Grammy for Best Rap Performance by a Duo or Group for "Don't Phunk with My Heart". According to IFPI, over 2 million copies have been sold in Europe. In the UK alone, it has sold over 1 million copies, although this is significantly lower than their sales of "Elephunk", which stand at over 1.6 million copies and 10 million worldwide. the band announced they were going to take a break to focus on their own personal projects. Will went on to produce Ferguson's first solo album, "The Dutchess", which was released in 2006, before beginning work with Michael Jackson, who had requested Will's expertise for the recording and production of his new album. Work began on the Jackson album in 2006, and continued until the singer's death in 2009, at which point will.i.am revealed that none of the material recorded during the period would be released. However, remixes recorded for Jackson's "Thriller 25" anniversary album were released in 2008. In 2007, will.i.am announced that he had co-created an all-female soul band entitled the Paradiso Girls, who he intended to work with on an upcoming solo project. The album, "Songs About Girls", was released in 2007.