Question: What girl group did the backing vocals artist in the song "Horn OK Please" come to prominence in?

Context articles: Bowling for Soup
Afrodiziak
Please Mr. Postman (album)
Primitive Man (album)
Snow Patrol
Horn OK Please
Please, Please, Please, Let Me Get What I Want
Shenandoah (band)
Anushka Manchanda
Horn OK Please (song)

Bowling for Soup (often typeset as ¡Bowling for Soup!
 and abbreviated as BFS) is an American rock band originally formed in Wichita Falls, Texas, in 1994.
 The band consists of Jaret Reddick (lead vocals, guitar), Chris Burney (guitar, backing vocals), Erik Chandler (bass, backing vocals, acoustic guitar), and Gary Wiseman (drums, percussion, backing vocals).
 The band is best known for its singles "Girl All the Bad Guys Want", "1985", "Almost", and "High School Never Ends".
Afrodiziak was a British singing group composed of Caron Wheeler, Claudia Fontaine, and later Naomi Thompson, that was active in the 1980s.
 As a duo, Wheeler and Fontaine were best known for performing backing vocals on The Jam's final single "Beat Surrender" in 1982 (with whom they also performed on their final tour) and Elvis Costello's 1983 album "Punch the Clock", especially its single, the international hit "Everyday I Write the Book".
 After the addition of a third member, Naomi Thompson, they went on to sing for acts such as Heaven 17 and Howard Jones.
 Afrodiziak performed backing vocals on the hit single Free Nelson Mandela, including the a cappella intro, staging it at The Tube (Channel4) in March 1984.
 Heaven 17's 1984 album, "How Men Are", featured them prominently, especially on the singles "Sunset Now" and "And That's No Lie".
 In 1984 and 1985 they performed on Madness's albums "Keep Moving" and "Mad Not Mad" respectively, also appearing in the video for the Madness single "Sweetest Girl".
 Also in 1985, they performed backing vocals on the first two songs on Howard Jones' second album, "Dream Into Action", both of which ("Things Can Only Get Better" and "Life in One Day") became worldwide hit singles; later that year, they went on tour as part of Jones' band.
 Other acts the group sang backup for include Japan, Ian Gillan, Aztec Camera, Maxi Priest, Aswad, Sam Brown, and Julia Fordham.
 Besides "The Tube", Afrodiziak also appeared on "Top of the Pops", "The Old Grey Whistle Test", "Solid Gold", and "American Bandstand".
 They performed live at the Montreux Jazz Festival, Live Aid Japan, Red Nose Day of Charity, and the first Free Nelson Mandela Concert.
Please Mr. Postman is the 1961 studio debut album from Motown girl group The Marvelettes and the sixth album ever released by the company.
 The focal track is the number-one hit single, "Please Mr. Postman".
 The album notably features cover versions of label mates The Miracles' "Way Over There and "I Want a Guy", which was the debut single for fellow Motown girl group The Supremes the same year, and their cover had served as the b-side to "Twistin' Postman" the less successful follow-up to "Please Mr. Postman."
 Although the original version by The Supremes flopped, The Marvelettes' cover became a regional hit.
Primitive Man is an album by the Australian synthpop band Icehouse, released in September 1982.
 In January 1982, Icehouse founder Iva Davies started recording "Primitive Man" essentially as a solo project, it was co-produced with Keith Forsey who later worked with Simple Minds and Billy Idol.
 Forsey supplied additional percussion; Davies supplied vocals, lead guitar, keyboards (Sequential Circuits Prophet-5), bass guitar and programmed the Linn drum machine.
 Released as an Icehouse album, "Primitive Man" reached #3 on the National album charts and provided their international breakthrough single, "Hey Little Girl" which peaked at #7 in Australia, #2 in Switzerland, #5 in Germany, Top 20 in UK, Sweden and Netherlands, and #31 on the U.S. "Billboard" Mainstream Rock chart.
 Another single "Great Southern Land" made the Australian Top 5, it was later featured in the 1988 Yahoo Serious film "Young Einstein", and remains their most popular song according to listeners of Triple M in 2007.
 To promote "Primitive Man" on tour, Davies re-assembled Icehouse with Michael Hoste (keyboards) and John Lloyd (drums), and new members: Bob Kretschmer (guitar, backing vocals), Guy Pratt (bass guitar, backing vocals) and Andy Qunta (keyboards, backing vocals).
Snow Patrol are a Northern Irish-Scottish rock band formed in 1993, consisting of Gary Lightbody (vocals, guitar), Nathan Connolly (guitar, backing vocals), Paul Wilson (bass guitar, backing vocals), Jonny Quinn (drums), and Johnny McDaid (piano, guitar, backing vocals).
 Initially an indie rock band, the band rose to prominence in the early-mid 2000s as part of the post-Britpop movement.
Horn OK Please is a phrase commonly painted on commercial vehicles like trucks, buses or local taxis in India.
 The purpose of the phrase is to alert a driver of a vehicle approaching from behind to sound their horn in case they wish to overtake.
"Please, Please, Please, Let Me Get What I Want" is a song originally performed by British group The Smiths.
 It was released as the B-side of "William, It Was Really Nothing" in 1984 and later featured on the compilation albums "Hatful of Hollow" and "Louder Than Bombs".
 The song has been covered by several artists, including The Decemberists, The Halo Benders, Franz Ferdinand, Elefant, OK Go, Deftones, Rob Dickinson, Emilie Autumn, Amanda Palmer, Hootie & the Blowfish, Muse, Cameo, Kaia Wilson, Third Eye Blind, Kate Walsh, The Dream Academy, Josh Rouse, She & Him, Slow Moving Millie, William Fitzsimmons and Sarah Darling, also, the chorus has been featured in a The Weeknd hook.
 British band Clayhill have covered the song and their version can be heard at the end of the Shane Meadows film "This Is England".
 Canadian electronic artist Venetian Snares also sampled the original song in "Nobody Really Understands Anybody".
 Canadian PBR&B singer The Weeknd sampled the song's chorus for the bridge for his song "Enemy".
 The song has become one of the most well known Smiths songs despite it only being a B-Side and it is often played by Morrissey during shows.
Shenandoah is an American country music group founded in Muscle Shoals, Alabama in 1984 by Marty Raybon (lead vocals, acoustic guitar), Ralph Ezell (bass guitar, backing vocals), Stan Thorn (keyboards, backing vocals), Jim Seales (lead guitar, backing vocals), and Mike McGuire (drums, background vocals).
 Thorn and Ezell left the band in the mid-1990s, with Rocky Thacker taking over on bass guitar; Keyboardist Stan Munsey joined the line up in 1995.
 The band split up in 1997 after Raybon left.
 Seales, Munsey, Thacker and McGuire reformed the band in 2000 with lead singer Brent Lamb, who was in turn replaced by Curtis Wright and then by Jimmy Yeary.
 Ezell rejoined in the early 2000s, and after his 2007 death, he was replaced by Mike Folsom.
 Raybon returned to the band in 2014.
 That same year, Jamie Michael replaced the retiring Jim Seales on lead guitar.
Anushka Manchanda (born 11 February 1984 in Delhi) is an Indian singer, model, actress and former VJ.
 She came to prominence as a member of the Indipop girl group Viva!
.
 Manchanda was also a participant in the reality television series "Jhalak Dikhhla Jaa".
"Horn OK Please" is the fifth single released from the soundtrack of the 2014 Bollywood film starring Naseeruddin Shah, Arshad Warsi, Madhuri Dixit and Huma Qureshi in lead roles directed by Abhishek Chaubey.
 The song is composed by Vishal Bhardwaj, the composer and co-producer of the film with the lyrics written by long-term collaborator Gulzar, performed by Honey Singh, Sukhwinder Singh and with backing vocals by Anushka Manchanda.
 The song was released on 24 December 2013 on iTunes.
 The single has a theme of Babban searching for Khalujaan after separation being explored.