The band's twelfth album "Mojo" was released on June 15, 2010, and reached number two on the "Billboard" 200 album chart. Petty described the album as "Blues-based. Some of the tunes are longer, more jam-y kind of music. A couple of tracks really sound like the Allman Brothers—not the songs but the atmosphere of the band." To promote the record, the band appeared as the musical guests on "Saturday Night Live" on May 15, 2010. The release of "Mojo" was followed by a North American summer tour. Prior to the tour, five of the band's guitars, including two owned by Petty, were stolen from their practice space in Culver City, California in April 2010. The items were recovered by Los Angeles police the next week.