Question: Harry Styles is the debut studio album by English singer and songwriter Harry Styles, it was preceded by the release of its lead single, "Sign of the Times", released on which date?
Context: Olawale Ashimi (who prefers to be called Olawale Olofo'ro; born 9 May 1986), better known as Brymo, is a Nigerian singer, songwriter and composer.  He started recording music in 1999, while in secondary school.  He signed a record deal with Chocolate City in 2010, but breached his contractual agreement with the label in 2013.  Brymo released his debut studio album, "Brymstone", in 2007.  His second studio album, "TheSonOfaKapenta", was released in 2012.  It was supported by the singles "Ara" and "Good Morning".  Brymo's third studio album, "Merchants, Dealers & Slaves", was released on 20 October 2013.  It received generally positive reviews from music critics and was preceded by two singles: "Down" and "Eko". " Tabula Rasa" was released as the singer's fourth studio album on 30 October 2014.  Its lead single, "Fe Mi", was described as a "soft traditional ballad".  On 8 December 2015, Brymo released an eight-track compilation album titled "Trance".  He signed an international distribution deal with Tate Music Group in 2015.  Brymo released his fifth studio album, "Klĭtôrĭs", on 9 May 2016.  It comprises 11 tracks and was preceded by the lead single "Happy Memories". "Story of My Life" is a song recorded by English Irish boy band One Direction.  It was released on 6 November 2013 by Syco Music and Columbia Records as the second single from the group's third studio album, "Midnight Memories" (2013).  Written by band members Niall Horan, Zayn Malik, Harry Styles, Liam Payne and Louis Tomlinson, along with Julian Bunetta, Jamie Scott, and John Ryan, the lyrics speak of a tumultuous relationship leading to lament and heartbreak. "Sweet Creature" is a song recorded by English singer and songwriter Harry Styles for his self-titled debut studio album (2017).  The song was written by Styles and Kid Harpoon, and its production was handled by the latter, Jeff Bhasker, Alex Salibian and Tyler Johnson.  It was released as a promotional single ahead of the album release. English singer and songwriter Zayn has released one studio album, seven singles (including three as a featured artist), two promotional singles and six music videos.  In 2010, Malik auditioned as a solo artist for the British reality television music competition "The X Factor".  After being eliminated as a solo performer, Malik was brought back into the competition, along with Harry Styles, Niall Horan, Liam Payne, and Louis Tomlinson, to form the boy band One Direction.  During his time in the group, Malik and his bandmates released the albums "Up All Night" (2011), "Take Me Home" (2012), "Midnight Memories" (2013), and "Four" (2014).  In March 2015, Malik's representative announced the singer's departure from the band. "Perfect" is a song by English-Irish boy band One Direction.  Released on 16 October 2015 as the second single from their fifth studio album "Made in the A.M.", it debuted at number one in Ireland, and reached the top 10 in several countries, including the United Kingdom, United States, France, New Zealand and Australia.  The song was written by members Harry Styles and Louis Tomlinson, along with the band's regular collaborators, Julian Bunetta and John Ryan among others. Harry Styles is the debut studio album by English singer and songwriter Harry Styles.  The album was released on 12 May 2017, through Columbia Records and Styles' own label, Erskine Records.  For the album, Styles worked with producers Jeff Bhasker, Alex Salibian, Tyler Johnson and Kid Harpoon.  The record was defined by music publications as a collection of soft rock, rock, Britpop and pop.  It received generally positive reviews from music critics, and commercially, it debuted atop the charts in several countries, including Australia, Canada, the UK and the US.  It was preceded by the release of its lead single, "Sign of the Times", while "Two Ghosts" served as the second single.  To promote the album, the singer is embarking on first headlining concert tour, . "Two Ghosts" is a song recorded by English singer and songwriter Harry Styles for his self-titled debut studio album.  The song was written by Styles, John Ryan, Mitch Rowland and Tyler Johnson and its production was handled by Jeff Bhasker, Alex Salibian and Johnson.  It was released as the second single from the album to US hot adult contemporary radio via Columbia Records on 7 August 2017, and to contemporary hit radio the next day. "Moments" is a song by English-Irish boy band One Direction from their debut studio album, "Up All Night" (2011).  It was written by Ed Sheeran, and Si Hulbert, the song's producer.  In 2011, as One Direction member Harry Styles told Sheeran that the boy band did not have enough songs for their album, Sheeran offered "Moments" as a track that Sheeran "was never going to use". "Sign of the Times" is the debut solo single by English singer and songwriter Harry Styles for his self-titled debut studio album.  It is his first single outside of the boy band One Direction.  Released on 7 April 2017, by Erskine and Columbia Records, it was written by Styles, Ryan Nasci, Mitch Rowland and its producers Jeff Bhasker, Tyler Johnson, and Alex Salibian.  Musically, it was defined by critics as a multi-genre ballad, including pop rock, soft rock and glam rock.  Its music video was released on 8 May. American pop rock band Train has released ten studio albums, two live albums, one video album, four extended plays, 30 singles, four promotional singles, and 26 music videos.  The band independently released their eponymous debut studio album in 1996, two years after their formation.  In February 1998, the band signed to Aware Records and Columbia Records and re-released the album under the two labels.  Three singles were released from "Train"; the album's second single, "Meet Virginia", peaked at number 20 on the US "Billboard" Hot 100.  The album peaked at number 76 on the US "Billboard" 200 and was certified platinum by the Recording Industry Association of America (RIAA).  In the period following the release of "Train", producer Brendan O'Brien started working with the band in a partnership that would last for three albums.  The band released their second studio album "Drops of Jupiter" in March 2001; it was preceded by the release of its lead single, "Drops of Jupiter (Tell Me)".  The single became a commercial success, peaking at number five on the US "Billboard" Hot 100 and also becoming a top ten hit in Australia, the Netherlands and the United Kingdom.  "Drops of Jupiter (Tell Me)" also won an award for Best Rock Song at the 44th Grammy Awards.  The album peaked at number six on the "Billboard" 200, earning a double platinum certification from the RIAA. " She's on Fire", the third single from "Drops of Jupiter", achieved moderate success in Australia and the UK.  Train's third studio album, "My Private Nation", was released in June 2003.  It peaked at number six on the "Billboard" 200 and was certified platinum by the RIAA.  The album's first two singles, "Calling All Angels" and "When I Look to the Sky", peaked at numbers 19 and 74 respectively on the "Billboard" Hot 100.  The band released their fourth studio album "For Me, It's You" in January 2006.  The album peaked at number 10 on the "Billboard" 200 and spawned three singles.
Answer: 7 April 2017