After their split in 2001 Aqua announced their comeback on October 26, 2007 during a press conference. During the summer of 2008 Aqua played eight concerts in eight different cities as part of the one-day music festival Gr?n Koncert in Denmark. On May 25, 2009 they released their first single since 2001, "Back to the 80's" soon followed by the greatest hits album, Greatest Hits. In February 2010 Aqua began working on their third studio album in Thailand.[1] Instead of touring that year, the band focused on writing and producing the album with the desire to create the "world's best pop album". After 18 months of songwriting and more than 100 songs recorded, the band finished the album after 12 months in the studio. Aqua were originally set to release their third studio album, Megalomania on July 14, 2011, however the release was pushed back to September 5, 2011 with the record label citing bad timing.On August 22, 2011, Aqua announced that the album would finally be released on October 3, 2011.