...Such success put Coldplay on the same commercial level as U2, and Coldplay retreated to the studio in late 2006 to work with famed producer Brian Eno (who had teamed up with U2 two decades prior for The Joshua Tree). Recording sessions with Eno were completed within one year, followed by several months of mixing and growing anticipation from the band's audience. Viva la Vida -- also known by its extended name, Viva la Vida or Death and All His Friends -- ultimately arrived in June 2008. Worldwide sales for the album had approached six million by November, when Coldplay released several new recordings (including a collaboration with hip-hop mogul Jay-Z) as part of the Prospekt's March EP. Preceded by first single “Every Teardrop Is Waterfall,” Coldplay's fifth studio album, 2011's Mylo Xyloto, was produced by Markus Dravs, Daniel Green, and Rik Simpson (the official press release adds “with enoxification and additional composition by Brian Eno”). -Andrew Leahey