Aqua was a Danish-Norwegian dance/pop group, best-known for their 1997 breakthrough single "Barbie Girl". The group formed in 1989, and achieved huge success across the globe in the late 1990s and early 2000s. Although often criticised by the media, the group managed to top the UK Singles Chart with their first three singles, a feat few artists have achieved. The group released two albums, Aquarium in 1997 and Aquarius in 2000, before splitting up in July 2001. The group sold an estimated 28 million albums and singles.