"To the 5 Boroughs" (2004), their first studio album in six years, marked a return to the style of their early 1990s albums, and featured their signature blend of pop culture references and absurdity. The group's next album, the entirely instrumental "The Mix-Up" (2007), earned the group a Grammy Award for Best Pop Instrumental Album in 2008. In 2009, the group announced their next studio album, "Hot Sauce Committee", as a two-part album. "Pt. 1" was delayed after Yauch was diagnosed with cancer. A year later, "Pt. 1" was shelved indefinitely. "Pt. 2", released as "Hot Sauce Committee Part Two" (2011), contained experimentation reminiscent of "Check Your Head" and "Hello Nasty", as well as old-school raps that contrasted with contemporary hip-hop trends. The album featured guest appearances by Nas and Santigold. A year later, on May 4, 2012, Adam Yauch died of cancer. After his death, Diamond and Horovitz disbanded the group out of respect for Yauch.