Festival, the French festival Hellfest Summer Open Air alongside Megadeth, Korn, Mastodon and Slayer. The North American leg of the tour began on July 24 in San Diego, California and wrapped up on August 26 in Philadelphia, Pennsylvania. They played with opening acts Redemption and Into Eternity. The Chaos In Motion Tour continued for the rest of the year and into 2008, playing shows in Asia, South America and, for the first time, Australia. On April 1, 2008, a two-disc compilation album titled Greatest Hit (...and 21 Other Pretty Cool Songs) was released by the band. The title jokingly references the song "Pull Me Under", the band's only significant radio hit. It also includes three song re-mixes from their second album, Images and Words, five edited versions of previously released songs, and a track from a single B-side. Unlike most greatest hits compilations, Dream Theater was actively involved with the album, coming up with the track listing that they felt best represented their musical careers. After the release of Greatest Hit, drummer Mike Portnoy organized a new tour called Progressive Nation 2008. Unlike previous Dream Theater tours, performances were held in cities that they had not visited before in the past (such as Vancouver, British Columbia, Canada) or cities they had not played in for several years. This tour also marked the first time, since the release of Images and Words, where the group performed in small venues and performance halls. In September 2008, the band released a DVD set called Chaos in Motion 2007–2008, featuring songs recorded at several shows during the Chaos in Motion tour. Black Clouds & Silver Linings (2008–2010) On October 7, 2008, Dream Theater returned to Avatar Studios to begin work on their tenth album, resuming their relationship with Paul Northfield to engineer and mix the record. The album, titled Black Clouds & Silver Linings, was released on June 23, 2009. In addition to the standard CD, the album was made available on vinyl LP, as well as a 3-disc Special Edition CD that includes the full album, a CD of instrumental mixes of the album and a CD of six cover songs from artists such as Queen and Rainbow. On July 1, 2009, the album debuted at No. 6 on Billboard's Top 200 album chart, with first week sales totalling 40,285, making their highest entry on the chart. The album featured "The Shattered Fortress",