Question: 808 peaked at number eight on what?

Context articles: On the Radio (Donna Summer song)
808 (song)
Hachiji dachi
Billboard Hot 100
Bryson Tiller discography
DJ Khaled discography
Paolo Nutini discography
Sorry for Party Rocking
Gary Seear
Gin and Juice

"On the Radio" is a song by American singer and songwriter Donna Summer, produced by Italian musician Giorgio Moroder, and released in late-1979 on the Casablanca record label.
 It was written for the soundtrack to the film "Foxes" and included on Summer's first international compilation album "".
 It was released as a single and became, in January 1980, her tenth top-ten hit in the U.S. as well as her eighth and final consecutive top 5 single.
 "On the Radio" peaked at number five on the "Billboard" Hot 100 and number nine on the soul chart.
 The song was also Summer's 14th entry on the Billboard Disco chart, where it peaked at number eight.
 In Canada, it peaked at number two.
"808" is an R&B song released in 1999 by American R&B girl group, Blaque.
 "808" was released as the lead single from Blaque's self-titled debut album "Blaque".
 "808" was a success in the United States becoming the group's first top ten hit peaking at number eight on the "Billboard" Hot 100 and top five peaking at number four on the Hot R&B/Hip-Hop Singles.
Hachiji dachi (八字立:はちじだち ) is a stance used in karate.
 In English, "hachiji" roughly translates to "the character for eight," but in context means something more like "shaped like number eight."
 Note that this refers to the shape of the "kanji" for the number eight: 八, not the arabic numeral "8".
 "Dachi" (立:だち ) , the pronunciation of "tachi" (立:たち ) when the word is second in a compound, translates to "stance," referring specifically to the body's position from the waist down.
 The term "hachiji dachi" is frequently used interchangeably with ""shizentai"" (自然体：しぜんたい ) , or ""shizentai dachi"", which translates to "natural stance" (literally, 'natural body,' or 'natural body stance').
 In most styles, "shizentai" is identical to hachiji dachi.
The "Billboard" Hot 100 is the music industry standard record chart in the United States for singles, published weekly by "Billboard" magazine.
 Chart rankings are based on sales (physical and digital), radio play, and online streaming.
The discography American R&B singer and hip hop recording artist Bryson Tiller consists of two studio albums, one mixtape, eleven singles and eight music videos.
 He started his career in 2011, releasing the mixtape "Killer Instinct Vol.1".
 In October 2015, Tiller released his debut studio album, "Trapsoul", which reached at number eight on the US "Billboard" 200.
 Two of the album's singles, "Don't" and "Exchange", have peaked in the Top 40 of the US "Billboard" Hot 100.
 Tiller's second studio album, "True to Self", was released on May 26, 2017 and peaked at number one on the "Billboard" 200, becoming his first number one album in the country.
American musician DJ Khaled has released ten studio albums, twenty six singles and nine featured singles.
 His first album, "Listennn... the Album", was released in 2006. "
We the Best", his second album, was released in 2007 and contains the hits "We Takin' Over", with Akon, T.I., Rick Ross, Fat Joe, Birdman and Lil Wayne, and "I'm So Hood", with T-Pain, Rick Ross, Trick Daddy, and Plies.
 The two songs peaked at number 28 and number 19 on the US "Billboard" Hot 100 and are platinum songs, and "We the Best" peaked at number eight on the US "Billboard" 200.
 His next album, "We Global", from 2008, peaked at number seven on the albums chart and has the song "Out Here Grindin'", featuring Akon, Rick Ross, Plies, Lil Boosie, Ace Hood, and Trick Daddy. "
All I Do is Win" had peaked at number 24 on the Hot 100 as "Victory"'s third single, and was certified double platinum by the RIAA.
 Released in 2011 was "We the Best Forever", containing the top 10 song "I'm On One", with Drake, Rick Ross and Lil Wayne.
 The album hit number five on the "Billboard" 200.
The discography of Paolo Nutini, a Scottish pop/rock singer, contains three studio albums, one live album, six extended plays, eight singles and ten music videos.
 Nutini's debut album, "These Streets", was released by Atlantic Records in the United Kingdom in July 2006.
 The album peaked at number three on the UK Albums Chart and has been certified five-times platinum by the British Phonographic Industry.
 The album also peaked within the top twenty on the Australian Album Chart, French Album Chart, Irish Albums Chart and in the Dutch Album Chart.
 Singles released from the album were: "Last Request", "Jenny Don't Be Hasty", "Rewind" and "New Shoes".
 "Last Request" was the most successful, reaching number five on the UK Singles Chart and number eight on the Irish Singles Chart.
 In May 2009, Nutini released his second album, "Sunny Side Up", which debuted at number one in the UK and in Ireland.
 It contained the singles: "Candy", "Coming Up Easy", "Pencil Full of Lead" and "10/10".
 "Sunny Side Up" has also been certified five-times platinum by the BPI and was the eighth biggest-selling album in the UK in 2009.
Sorry for Party Rocking is the second and final studio album by LMFAO.
 It was released June 21, 2011 physically and digitally by Interscope Records as the follow-up to their debut album "Party Rock" (2009). "
Party Rock Anthem" was the first single released from the album and was an international hit.
 The second single was "Champagne Showers" and reached number eight in New Zealand, and nine in Australia.
 It became an international hit, also charting in France, Ireland, and Austria.
 The third single, "Sexy and I Know It" was released on September 16, 2011.
 It peaked at number one on the US "Billboard" Hot 100 and also topped the charts in Australia, Canada, and New Zealand. "
Sorry for Party Rocking" was released on January 9, 2012 as the fourth single from the album and peaked at number eight in Belgium, 16 in France, 18 in Ireland, 19 on the US Pop Songs, 23 in the United Kingdom, 27 in New Zealand, 31 in Canada, 32 in Australia, and 49 on the Billboard Hot 100.
Gary Alan Seear (born 19 February 1952) is a former New Zealand rugby union player.
 A number eight later in his career, Seear made his debut for Otago as a 19-year-old as a lock.
 He captained the 1974 Junior All Blacks.
 Seear toured South Africa with the 1976 All Blacks but did not make an appearance until the following year where he played at number eight in two tests in France.
 He made further appearances in the 1978 home series against the Wallabies, the 1979 French tourists side, four more internationals in Britain and the sole test in Australia in 1979.
 He played in Italy for the Fracasso San Dona club during the 1979 season.
 He now works as a commercial property sales consultant for worldwide real estate firm Colliers International in Christchurch.
"Gin and Juice" is the second single by rapper Snoop Doggy Dogg from his debut album "Doggystyle".
 It reached the top ten on the "Billboard" Hot 100 in the United States, peaking at number eight.
 It earned a gold certification from the RIAA and sold 700,000 copies.
 "Gin and Juice" was nominated for the 1995 Grammy Award for Best Rap Solo Performance.
 It was listed as number eight on VH1's 100 Greatest Songs of Hip Hop.