Roots of Kelly Key

"Barbie Girl" is a song by Danish-Norwegian dance-pop group Aqua. It was released in April 1997 by Universal and MCA as the third single from the group's debut studio album, Aquarium. The song was written by band members Søren Rasted, Claus Norreen, René Dif, and Lene Nystrøm, and was produced by the former two alongside Johnny Jam and Delgado. It was written after Rasted saw an exhibit on kitsch culture in Denmark that featured Barbie dolls. The accompanying music video was directed by Danish directors Peder Pedersen and Peter Stenbæk.

"The Ketchup Song (Aserejé)" is a song by Spanish pop group Las Ketchup, released as the lead single from their debut studio album, Hijas del Tomate (2002). The song is about a young man who enters a nightclub while singing and dancing. In addition to the original Spanish version, the song exists in a form with Spanglish verses, although the nonsensical chorus is identical in both versions.