Samuel Frederick Smith (born 19 May 1992) is an English singer-songwriter.
 He rose to fame in October 2012 when he was featured on Disclosure's breakthrough single "Latch", which peaked at number eleven on the UK Singles Chart.
 His subsequent feature—on Naughty Boy's "La La La"—earned him his first number one single in May 2013.
 In December 2013, he was nominated for the 2014 Brit Critics' Choice Award and the BBC's Sound of 2014 poll, both of which he won.
Zhou Yu (; born 19 May 1992) is a Chinese male table tennis player.
 In 2012, he won Chinese National Championships at the age of twenty.
 He is the medalist in men's doubles event at the both 2013 and 2015 World Championships.
Heshan Bandara Unamboowe (born 19 May 1992) is a Sri Lankan swimmer who has represented his country at international competitions.
 He was born in the town of Kandy to parents Dudley and Priyanga.
 He received his primary and secondary education at Trinity College, Kandy.
 He started schooling in Dharmaraja College, Kandy and joined Trinity College in Grade 2.
 Unamboowe competed in the Men's 100m backstroke event at the 2012 Summer Olympics.
 He ranked 42nd and did not advance to the semifinals.
 He currently competes for Miami University in Ohio
Adele Laurie Blue Adkins (born 5 May 1988) ( ) is an English singer-songwriter.
 After graduating from the BRIT School for Performing Arts and Technology in 2006, Adele was given a recording contract by XL Recordings after a friend posted her demo on Myspace the same year.
 In 2007, she received the Brit Awards "Critics' Choice" award and won the BBC Sound of 2008 poll.
 Her debut album, "19", was released in 2008 to commercial and critical success.
 It is certified seven times platinum in the UK, and three times platinum in the US.
 The album contains her first song, "Hometown Glory", written when she was 16, which is based on her home suburb of West Norwood in London.
 An appearance she made on "Saturday Night Live" in late 2008 boosted her career in the US.
 At the 51st Grammy Awards in 2009, Adele received the awards for Best New Artist and Best Female Pop Vocal Performance.
Gordon Goodwin's Big Phat Band, or simply The Big Phat Band, is an 18-piece jazz orchestra that combines the big band swing of the 1930s and 1940s with contemporary music such as funk and jazz fusion.
 The band is led by Gordon Goodwin, who arranges, composes, plays piano and saxophone.
 Since its origin, the Big Phat Band has received several Grammy Awards and many Grammy nominations.
Eleanor May Tomlinson (born 19 May 1992) is an English actress, known for her roles as Princess Isabelle in "Jack the Giant Slayer" (2013), Isabel Neville in "The White Queen", and Demelza Poldark in "Poldark".
Nick Raphael is a music industry executive and was born in London, England.
 He is currently President of Capitol Records in the UK.
 He got his first taste of the music industry in 1987, when he with school friends promoted a night at Dingwalls in Camden Lock, London.
 His most recent successes with artists he signed include 5 Seconds of Summer, Paloma Faith who won the 2015 Brit Award for Best Female Solo Artist and Sam Smith who won four 2015 Grammy Awards.
Bruna Jessica Oliveira Farias (born 19 May 1992) is a Brazilian sprinter.
 She competed in the 4 × 100 metres relay at the 2015 World Championships in Athletics in Beijing but did not make the final.
Paul Richard Epworth (born 25 July 1974 in Bishop's Stortford, Hertfordshire) is an English music producer, musician, and songwriter.
 His production and writing credits include Adele, Rihanna, and Maxïmo Park amongst many others.
 On 12 February 2012 at the 54th Grammy Awards, Epworth won four Grammy Awards for Producer of the Year, Album of the Year (Adele's "21"), and Song of the Year and Record of the Year (for "Rolling in the Deep").
 He won the Academy Award for Best Original Song alongside Adele, for "Skyfall".
 His sister Mary Epworth is a singer and songwriter.
 He is a member of the Music Producers Guild.
 He also has a record label, Wolf Tone, whose artists include Glass Animals, Rosie Lowe and Plaitum.
 He has won 'Producer of the Year' at the BRIT Awards three times, the most recent in 2015.
 At the 59th Grammy Awards in 2017, Epworth won a Grammy for Album of the Year for his work on Adele's 25".
Essie Jain is an English singer-songwriter born and raised in London, who is now based in New York City.

Question: How many Grammy awards did an English singer-songwriter born 19 May 1992 win in 2015?
Answer: four