In September 2008, Slash began production on his debut solo album. He described the process of recording by himself as "cathartic." He also mentioned working on the album gave him a chance to "...take a little bit of a break from all the politics and the democracy that is a band and just sort of do my own thing for a little bit. Slash's wife Perla revealed that many different artists would appear on the album, saying, "It's going to be Slash and friends, with everyone from Ozzy to Fergie." The album, simply titled "Slash", debuted at No. 3 on the U.S. chart upon its release in April 2010. It featured an all-star roster of guest musicians, including Osbourne, Fergie of The Black Eyed Peas, Adam Levine of Maroon 5, M. Shadows of Avenged Sevenfold, Lemmy Kilmister of Motörhead, Dave Grohl, Chris Cornell and Iggy Pop. The album also features musical collaborations with former Guns N' Roses members Izzy Stradlin, Steven Adler and Duff McKagan. Preceding the release of the album, Slash had released the Japan-only single "Sahara", featuring Japanese vocalist Koshi Inaba (from B'z). It charted at number four on the Oricon Singles Chart, as well number six on the Billboard Japan Hot 100. It has been awarded Western "Single of the Year" award at the 24th Japan Gold Disc Award by RIAJ. To promote the album, Slash embarked on his first solo world tour with Myles Kennedy of Alter Bridge—who also appeared on the album—on vocals, Bobby Schneck on rhythm guitar, Todd Kerns on bass, and Brent Fitz on drums. Slash opened for Ozzy Osbourne for a leg of Osbourne's Scream World Tour.