"Bass Down Low" is the debut single by American recording artist Dev, written and performed by Dev and The Cataracs.
 Produced by The Cataracs, the song was released on November 16, 2010, through Universal Republic as the lead single for Dev's debut studio album, "The Night the Sun Came Up" (2011).
 Initially, the song was made for The Cataracs with Dev as the featured act, but she was made the main artist as they believed it would be a suitable follow-up to Far East Movement's "Like a G6", which Dev and The Cataracs appeared on.
 British rapper Tinie Tempah was featured on an official remix of "Bass Down Low" that was made for the song's release in the United Kingdom.
 Musically, "Bass Down Low" is an electro song with skittering synths and the lyrics speak of different forms of debauchery.
"Like a G6" is a 2010 song written and performed by Far East Movement, The Cataracs, and Dev, with the latter two being credited as featured artists.
 It is the lead single from Far East Movement's third studio album "Free Wired", and production was handled by The Cataracs.
 For the chorus, Dev samples a verse from her own single "Booty Bounce", which was also written and produced by the Cataracs.
Devin Star Tailes (born July 2, 1989), better known as Dev (sometimes stylized as DEV or dEV), is an American singer, songwriter, rapper, model and radio host.
 She was discovered by the record label, Indie-Pop, and The Cataracs via Myspace after her friend Shane Crislip, posted her singing to some beats.
 Dev's song "Booty Bounce" was sampled in Far East Movement's hit single "Like a G6" which reached number 1 in the US, and sold over four million downloads in the country.
"Shop Around" is a song written by Smokey Robinson and Berry Gordy.
 It became a popular hit in 1960 when originally recorded by the Miracles, reaching number one on the "Billboard" R&B chart and number 2 on the "Billboard" Hot 100 chart.
 A 1976 cover version by the American husband and wife pop duo Captain & Tennille was also a popular hit, reaching number 4 on the Hot 100 chart, number 4 on the "RPM" chart in Canada and charting at number one on the "Billboard" Adult Contemporary chart.
"Rocketeer" is the second single from Far East Movement's 2010 album "Free Wired".
 The track features Ryan Tedder of OneRepublic.
 It was written by Far East Movement, as well as members of the production teams The Stereotypes, The Smeezingtons, and produced by The Stereotypes and The Smeezingtons.
 It was released as a single on October 29, 2010, and peaked at number 7 on the "Billboard" Hot 100.
"Upside Down" is a song written and produced by Chic members Nile Rodgers and Bernard Edwards.
 It was recorded by American singer Diana Ross.
 The song was issued as a single through the Motown label in 1980, as the lead single from her self-titled tenth studio album, "diana".
 "Upside Down" hit number one on the "Billboard" Hot 100 chart on September 6, 1980.
 It also hit number one on the "Billboard" Disco and Soul charts.
 The single was released a full four weeks after the album was released.
 It held down the number one spot for four weeks.
"When I Grow Up (To Be a Man)" is a song written and composed by Brian Wilson with additional lyrics by Mike Love for the American rock band The Beach Boys.
 It was released on their 1965 album "The Beach Boys Today!
" and as a single the previous year hit number nine on the "Billboard" Hot 100 chart, number seven in "Cash Box", number five in "Variety" and number three in the Associated Press/Gilbert Youth chart.
 It spent two weeks at number one in Canada's national RPM chart.
 The B-side of the single was "She Knows Me Too Well" and stopped one place under the "Hot 100".
"Booty Bounce" is a song by American recording artist Dev.
 It was produced by The Cataracs.
 Although it was released after, "Booty Bounce" was sampled in Far East Movement's hit single "Like a G6" which reached number one on the US "Billboard" Hot 100 chart, and sold over three million downloads in the country.
 It was also featured on Dev's 2011 mixtape "Is Hot: The Mixtape".
Far East Movement (abbreviated FM) is an American hip hop and electronic music group based in Los Angeles.
 The group formed in 2003 and consists of Kev Nish (Kevin Nishimura), Prohgress (James Roh) and DJ Virman (Virman Coquia).
 Their single "Like a G6", featuring pop-rap duo The Cataracs and singer Dev hit number one on both the "Billboard" Hot 100 chart and on the iTunes chart in late October 2010, making them the first Asian-American group to earn a number one hit on the "Billboard" Hot 100 chart.
 Among their other chart toppers are: "Rocketeer" featuring Ryan Tedder of One Republic (peaked at #7 on Billboard), "Turn Up the Love" (#2 on the UK Charts), and their 2012 remix to the song "Get Up (Rattle)" by the Bingo Players, also hit #1 on the UK Charts.
"Here I Go Again" is a song by British rock band Whitesnake.
 Originally released on their 1982 album, "Saints & Sinners", the power ballad was re-recorded for their 1987 self-titled album.
 The song was re-recorded again that year in a new "radio-mix" version, which was released as a single and hit number one on the "Billboard" Hot 100 chart on 10 October 1987, and number nine on the UK Singles Chart on 28 November 1987.
 The 1987 version also hit number one on the Canadian Singles Chart on 24 October 1987.
 In 2006, the 1987 version was ranked number 17 on VH1's 100 Greatest Songs of the '80s.

Question: When did "Like a G6", a song written and performed by Far East Movement, The Cataracs, and Dev hit number one on both the "Billboaard" Hot 100 chart and on the iTunes chart?
Answer: October 2010