World Upside Down is the fifth studio album (second since the reunion), by House of Lords, released on May 23, 2006. The album features founding member James Christian once again with an all-new line-up, as he is the only one of the original members left on the line-up. Still, founding member Gregg Giuffria, who was not reunited with the original line-up for the 2004 album The Power and the Myth, is featured on the album as a guest keyboardist. Collaborator and producer Jeff Kent played bass and keyboards on the album, as the band was without a bassist at the time.