Both the song and its music video feature Lene Nystrøm as Barbie and René Dif as Ken. The lyrics of the song are about Barbie and Ken, the dolls made by Mattel. It also became the subject of the controversial lawsuit Mattel v. The song was performed as the interval act in the Eurovision Song Contest 2001. It also reached number two in the group's homeland and peaked at number seven on the US Billboard Hot 100, where it remains Aqua's biggest hit single and their only one to reach the top 10 of the Hot 100. The song topped the charts worldwide, particularly in European countries such as the United Kingdom, where it was a number-one hit for four weeks and remains one of the best-selling singles of all time. It was written after Rasted saw an exhibit on kitsch culture in Denmark that featured Barbie dolls. The song was written by Søren Rasted, Claus Norreen, René Dif, and Lene Nystrøm, and was produced by Johnny Jam, Delgado, Rasted, and Norreen. It was released in May 1997 as the third single from the group's debut studio album, Aquarium (1997). ' Barbie Girl' is a song by the Danish dance-pop group Aqua.