Aqua is a Danishdance-pop group, best known for their 1997 breakthrough single "Barbie Girl". The group formed in 1996 and achieved huge success across the globe in the late 1990s and early 2000s. The group managed to top the UK Singles Chart with their first three singles. The group released two albums: Aquarium in 1997 and Aquarius in 2000, before splitting up in July 2001. The group sold an estimated 33 million albums and singles, making them the most successful Danish band ever, and the second most successful Norwegian band.
In their prime, Aqua's singles managed to chart top ten in a number of countries where continental European pop acts would not normally succeed, including the United States, Australia, and Japan. The group also caused controversy with the double entendres in their "Barbie Girl" single, with the Barbie doll makers Mattel filing a lawsuit against the group. The lawsuit was finally dismissed by a judge in 2002, who ruled "The parties are advised to chill".
The band's members are vocalists Lene Nystrøm and René Dif, keyboardist Søren Rasted, and guitarist Claus Norreen. During their split, Nystrøm, Dif and Rasted have all achieved solo chart success, and Norreen has continued in the music industry remixing other artists' material.
At a press event on Friday, October 26, 2007, the group announced a reunion tour, as well as the release of a compilation album featuring new material. Their planned third album has a tentative release date of June 14, 2011.