The band that released the song "Back to the 80's" have sold approximately how many albums and singles?
33 million
Title: Aqua (band)
Passage: Aqua is a Danish eurodance group, best known for their 1997 breakthrough single "Barbie Girl".  The group formed in 1989 and achieved huge success around the globe in the late 1990s and early 2000s.  The group released three albums: "Aquarium" in 1997, "Aquarius" in 2000 and "Megalomania" in 2011.  The group sold an estimated 33 million albums and singles, making them the most profitable Danish band ever.
Title: Back to the 80s (song)
Passage: "Back to the 80s" is a song by Norwegian/Danish band Aqua.  The song was written by members Søren Rasted, Claus Norreen, and produced by Rasted, for their second greatest hits album (2009).  "Back to the 80s" was Aqua's first single in eight years, following the release of the 2001 single "We Belong to the Sea".
Title: Rouge discography
Passage: The discography of Brazil girl group Rouge consists of four studio albums, one remix album, three DVDs and one "cancelled album".  The band has also released twelve official singles, two featurings and three promotional singles.  In four years of career, they achieved four Gold, three Platinum and one Diamond album in Brazil and released various hit singles, becoming the most successful Brazilian girl group of all time.  As of August 2010, the Rouge have sold approximately 6 million records.
Aqua (band) Back to the 80s (song)