Question: Kelly Sheehan wrote songs for which rapper and former backing singer?

Context articles: Warumpi Band
Frausdots
Ooops Up
Lolita (Leah LaBelle song)
Kelly Sheehan
Chasing Time (song)
Oh World
Sexercize
Mary J. Blige
Toy World

Warumpi Band were an Australian country and Aboriginal rock group which formed in the outback settlement of Papunya, Northern Territory in 1980.
 The original line-up was George Burarrwanga on vocals and didgeridoo, Gordon Butcher on drums, his brother Sammy Butcher on guitar and bass guitar, and Neil Murray on rhythm guitar and backing vocals.
 Their key singles are "Jailanguru Pakarnu" (1983), "Blackfella/Whitefella" (1985), "Sit Down Money" (1986), "My Island Home" (1987) and "No Fear" (1987).
 The group released three albums, "Big Name, No Blankets" (1985), "Go Bush!"
 (1987) and "Too Much Humbug" (1996).
 From late 1987 to mid-1995 the group rarely performed as Murray focused on his solo career.
 In early 1995, Christine Anu (former backing singer in Murray's touring group, The Rainmakers), issued a cover version of "My Island Home".
 Warumpi Band regrouped before disbanding in 2000.
 Burarrwanga died on 10 June 2007 of lung cancer.
Frausdots is a band from Los Angeles, California, USA.
 The band consists of Brent Rademaker, formerly of The Tyde and Beachwood Sparks, and Michelle Loiselle, a former backing singer for Guns N' Roses, Carl Tapia, Roger Brogan, Exiquio Talavera and David Baum.
"Ooops Up" is a song by German Eurodance group Snap!
.
 It was released on 1 May 1990 as their second single from their debut studio album "World Power".
 The song is a re-working of "I Don't Believe You Want to Get Up and Dance (Ooops!)
"; a 1980 hit by The Gap Band, with which band member Penny Ford was a former backing singer.
 The song was a world-wide hit, reaching number-one in the Netherlands and charted the top ten in many countries.
"Lolita" is a song recorded by American singer Leah LaBelle released on May 7, 2013.
 It was written by American songwriter Kelly Sheehan in collaboration with record producer Pharrell Williams.
 Labelle recorded the track as a part of a joint record deal with Epic Records, So So Def Recordings, and I Am Other.
 Backed by synthesizers and a bass guitar, it is a funk and pop song with disco and Latin influences.
 Some media commentators have suggested the song was inspired by Vladimir Nabokov's 1955 novel "Lolita", while others noted that the lyrics greatly diverged from the source material.
Kelly Sheehan (born July 26, 1983 to father David Sheehand and multiple Emmy award winning producer mother Carol Scott), also known as "Madame Buttons", is a songwriter and recording engineer from Los Angeles.
 Kelly Sheehan has written songs for Kylie Minogue, Beyoncé, DJ Khaled, Mary J. Blige and others.
 She has engineered for Justin Bieber, Mariah Carey, Chris Brown, Katharine McPhee, Tyrese, T.I., The Game, Akon, Ne-Yo, Charlie Wilson, Toni Braxton, Avant, Keri Hilson and others.
"Chasing Time" is a song recorded by American rapper Azealia Banks for her debut studio album, "Broke with Expensive Taste" (2014).
 It was released as the third single from the album on September 22, 2014.
 Production of the song was handled by Andrew "Pop" Wansel, while it was written by Banks, Ronnie Colson, Warren Felder, Jonathan Harris, Steve Mostyn, Kelly Sheehan and Wansel.
 Lyrically, the track discusses Banks recovering from a breakup.
Oh World, released in 1989, is the sole solo album by Paul Rutherford, the former backing singer of Frankie Goes To Hollywood.
"Sexercize" is a song by Australian singer Kylie Minogue from her twelfth studio album "Kiss Me Once" (2014).
 The song was written by Sia Furler, Marcus Lomax, Jordan Johnson, Stefan Johnson, Clarence Coffee and Nella Tahrini, whilst production was handled by The Monsters & The Strangerz and Kelly Sheehan.
 Musically, "Sexercize" is a dubstep song that incorporates influences of urban-R&B and electronic dance music.
 The song's production was compared to songs by Barbadian singer Rihanna and from Minogue's tenth studio album "X" (2007).
 The lyrical content talks about sexual intercourse with a male partner, referencing the acts of sexercising.
Mary Jane Blige ( ; born January 11, 1971) is an American singer, songwriter, rapper, model, record producer and actress.
 Starting her career as a backing singer on Uptown Records in 1989, Blige released her first album, "What's the 411?
", in 1992, and has released 13 studio albums since and made over 150 guest appearances on other albums and soundtracks.
Toy World is the second album released by Cardiacs (including "The Obvious Identity", released on cassette the previous year under the band name "Cardiac Arrest").
 The cassette is a mixture of older songs by the earlier Cardiac Arrest lineup and newer songs by the then-current Cardiacs lineup.
 This was the last album to feature keyboard player/backing singer Colvin Mayers, and the first to feature saxophonist/backing singer/occasional keyboard player Sarah Cutts (who on all future releases would be referred to as Sarah Smith).