Question: Sade are an English band formed in London in 1982, Sade Adu is the lead singer of the eponymous band, Helen Folasade Adu, CBE (Yoruba: "Fọláṣadé Adú" ), known professionally as Sade Adu or simply Sade, is a Nigerian-born British singer-songwriter, composer, arranger and record producer, born when?
Context: Stuart Colin Matthewman (born 18 August 1960), also known as Cottonbelly, is an English songwriter, multi-instrumentalist, and record producer.  With Sade Adu, Paul S. Denman, and Andrew Hale, he gained worldwide fame as the guitarist/saxophonist of the English band Sade.  Stuart is also a member of bands, Sweetback and Twin Danger. Diamond Life is the debut studio album by English band Sade.  It was first released in the United Kingdom on 16 July 1984 by Epic Records and in the United States on 27 February 1985 by Portrait Records.  After studying fashion design, and later modelling, Sade Adu began backup singing with British band Pride.  During this time Adu and three of the original members of "Pride" - Paul Anthony Cook, Paul Denman and Stuart Matthewman - left the group to form their own band called Sade.  Following various demos and performances, Sade received interest from record labels and later signed to Epic. Promise is the second studio album by English band Sade, first released in the United Kingdom on 4 November 1985 by Epic Records and in the United States on 15 November 1985 by Portrait Records.  In 1984 the band released their debut album "Diamond Life", the album became highly successful selling six million copies, and became the best-selling debut by a British female vocalist.  Following the release of the album the band began planning its follow up, recording for "Promise" began in February and lasted until August 1985, the band enlisted the same team of producers they worked with on their debut, including Robin Millar, Mike Pela, Ben Rogan and lead singer Sade Adu.  The album's title comes from a letter from Adu's father where he refers to the "promise of hope" to recover from cancer. "No Ordinary Love" is a song by English band Sade from their fourth studio album "Love Deluxe" (1992).  "No Ordinary Love" was released as the album's lead single in the United Kingdom on 28 September 1992, by Epic Records.  It peaked at number 26 in the UK when originally released, but reached number 14 when it was re-released in June 1993.  In the accompanying music video, Sade Adu is dressed as a mermaid and a bride. "Cherish the Day" is the fourth and final single by English band Sade from their fourth studio album, "Love Deluxe" (1992).  It was released in the UK on July 17, 1993 and in the US on September 11, 1993.  Filmed in black and white by cinematographer Derek M. Allen, in the music video Sade Adu performs the song while playing a guitar on the rooftop of an NYC skyscraper as her bandmates and a few other people vibe to the music on the streets below.  With the prominent views of the World Trade Center in most of the shots and with the coincidence of its US release date falling on September 11th, the music video for the single acts as an unintended tribute to the Twin Towers. Helen Folasade Adu, CBE (Yoruba: "Fọláṣadé Adú" ] ; born 16 January 1959), known professionally as Sade Adu or simply Sade ( ), is a Nigerian-born British singer-songwriter, composer, arranger and record producer.  With members Paul S. Denman, Andrew Hale and Stuart Matthewman, she gained worldwide fame as the lead vocalist of the English band Sade. Paul Spencer Denman (born 29 July 1957), is an English songwriter and bass guitarist.  With Sade Adu, Andrew Hale, and Stuart Matthewman, he gained worldwide fame as the bass guitarist of the English band Sade.  He is also a member of the English band Sweetback. Sade ( ) are an English band formed in London in 1982.  Three of their members were originally from Kingston upon Hull in the East Riding of Yorkshire.  Sade Adu is the lead singer of the eponymous band.  Their music features elements of soul, quiet storm, smooth jazz, and sophisti-pop. Sweetback is an English band composed of members from the band Sade, not including the frontwoman Sade Adu.  They are a jazz/funk band with R&B overtones.  Stuart Matthewman, Paul Denman and Andrew Hale had been recording with female vocalist Sade Adu since 1984.  The group Sweetback formed in 1994 at the conclusion of Sade's Love Deluxe World Tour.  Their albums feature a host of guest vocalists such as Leroy Osbourne, Amel Larrieux, Maxwell, Aya (Lysa Aya Trenier), Bahamadia, Chocolate Genius, and El Debarge. The discography of Sade, an English based band formed in London in 1982, consists of six studio albums, two compilation albums, two live albums, two EPs, 23 singles, five video albums, and 20 music videos. Following a brief stint of studying fashion design and modelling, Sade Adu began back up singing for a band named Pride, during this time she attracted attention from record labels and along with other members left Pride and formed Sade.  Following a record deal Sade and her eponymous band released their debut album "Diamond Life" (1984), the album was a commercial success and sold over six million copies, becoming one of the top-selling debut recordings of the '80s and the best-selling debut ever by a British female vocalist.
Answer: 16 January 1959