Scarlett Belle were an Australian pop duo who consisted of Tamara Jaber and Reigan Derry.
 Formed in 2007, the original line-up consisted of Jaber, Derry and Hayley Aitken.
 However, Aitken left the group in 2008, leaving them as a duo.
 Scarlett Bele's debut single "Closure" was released in June 2010, and peaked within the top forty on the ARIA Singles Chart.
 Their second single "Freak Tonight" became a top thirty hit.
 In 2011, Scarlett Belle officially disbanded to pursue their solo careers.
Bachelor Girl were an Australian pop duo, formed in 1992 by Tania Doko as vocalist and James Roche as musician, producer and arranger.
 Their 1998 debut single, "Buses and Trains", was a top 10 hit in Australia and New Zealand; it peaked in the top 30 in Sweden and charted in the United Kingdom.
 The follow up single, "Treat Me Good" reached the top 40 in Australia and New Zealand.
 The related album, "Waiting for the Day" (November 1999) appeared in the top 20 on the ARIA Albums Chart and achieved platinum certification from ARIA.
Rebecca Jackson Mendoza (born 1973) is an Australian actress, singer, and dancer.
Natalie Jackson Mendoza (born 12 August 1978) is an Australian actress and musician.
 She is best known for her role as one of the main characters, Jackie Clunes in the British drama series "Hotel Babylon" and as tough girl Juno in the acclaimed horror thriller "The Descent", as well as its sequel, "The Descent Part 2".
 She was playing Arachne in the Broadway musical "" but was forced to leave the show due to a work-related injury.
Jackson Mendoza were a short-lived Australian pop duo consisting of sisters, Natalie (born 1978) and Rebecca Jackson Mendoza (born 1973).
 Jackson Mendoza's debut single, "Venus or Mars", was the first song penned by music production team, the Matrix.
 "Venus or Mars" was released in October 1999, spent ten weeks on the top 50 of the ARIA Singles Chart, which peaked at No. 24.
 It reached No. 31 in New Zealand.
 Their follow-up single, "Ordinary Girl" (August 2000), also reached No. 24 in Australia but did not peak in the top 50 in New Zealand.
 The group disbanded soon after with both members pursuing acting careers.
Australian pop duo The Veronicas have released three studio albums, two live albums, one compilation album, three extended plays, sixteen singles, fifteen music videos and two video albums.
 Their debut studio album, "The Secret Life Of...", was released in Australia in October 2005.
 Influenced by pop rock, pop punk and teen pop genres, the album was successful in Australia, where it reached number two and gained quadruple Platinum certification from the Australian Recording Industry Association (ARIA).
 The album's lead single, "4ever", peaked at number two on the Australian Singles Chart and became a top-twenty hit in countries such as Ireland, New Zealand and the United Kingdom.
 Four additional singles were released from the album, including "Everything I'm Not" and "When It All Falls Apart", which reached the top ten in Australia and earned Gold certification.
Chino & Nacho was a Venezuelan pop duo, consisting of Jesús Alberto Miranda Pérez (Chino) (born November 15, 1984) and Miguel Ignacio Mendoza Donatti (Nacho) (born August 22, 1983).
 In 2010, the group won a Latin Grammy for Best Urban Album for "Mi Niña Bonita".
Savage Garden were an Australian pop duo consisting of Darren Hayes on vocals and Daniel Jones on instruments.
 Formed in Logan City, Queensland, in 1993, the duo achieved international success in the late 1990s and early 2000s with the number-one hit singles "I Want You", "To the Moon and Back", "Truly Madly Deeply", "The Animal Song" and "I Knew I Loved You".
 The band's two studio albums, "Savage Garden" and "Affirmation" reached number one in Australia and peaked in the top ten in both the United Kingdom and United States.
 Their two studio albums have sold 23 million copies worldwide.
Affirmation is the second and final studio album by Australian pop duo Savage Garden.
 The album was released on 9 November 1999 by Columbia Records.
 It won the 2000 ARIA Music Award for Highest Selling Album along it nominated the 2000 ARIA Music Award for Best Group but lost to Killing Heidi's Reflector and Best Pop Album but lost to Kylie Minogue's Spinning Around.
The Clique were an Australian pop duo consisting of members Jacinta Gulisano and Jordan Rodrigues.
 They were formed in 2013 originally as the trio Third Degree, who competed in the fifth season of "The X Factor Australia" and finished in fourth place.
 The group subsequently signed with Sony Music Australia and released their debut single "Different Kind of Love", which peaked at number 22 on the ARIA Singles Chart.
 Following the departure of Kelebek in 2014, Third Degree changed their name to The Clique and were no longer signed to Sony Music.
 The group disbanded in 2015 to pursue solo careers.

Question: The Australian pop duo Jackson Mendoza, consisting of Natalie Mendoza and Rebecca Mendoza released this single in October of 1999.
Answer: Venus or Mars