Amy Jade Winehouse (14 September 1983 – 23 July 2011) was an English singer and songwriter. She was known for her deep, expressive contralto vocals and her eclectic mix of musical genres, including soul (sometimes labelled as blue-eyed soul and neo soul), rhythm and blues, and jazz. Winehouse's debut album, Frank (2003), was a critical success in the UK and was nominated for the Mercury Prize. Her follow-up album, Back to Black (2006), led to five 2008 Grammy Awards, tying the then record for the most wins by a female artist in a single night, and made her the first British woman to win five Grammys, including three of the General Field "Big Four" Grammy Awards: Best New Artist, Record of the Year and Song of the Year. Winehouse won three Ivor Novello Awards: in 2004, Best Contemporary Song for "Stronger Than Me"; in 2007, Best Contemporary Song again, this time for "Rehab"; and in 2008, Best Song Musically and Lyrically for "Love Is a Losing Game." She also won the 2007 Brit Award for Best British Female Artist, having been nominated for Best British Album, with Back to Black. Winehouse died of alcohol intoxication on 23 July 2011, aged 27. Her album Back to Black posthumously became, for a time, the UK's best-selling album of the 21st century.

Winehouse's bodyguard said that he had arrived at her residence three days before her death and felt she had been somewhat intoxicated. He observed moderate drinking over the next few days. He observed her "laughing, listening to music and watching TV at 2 a.m. the day of her death". According to the bodyguard, at 10 a.m. he observed her lying on her bed and tried unsuccessfully to rouse her. This did not raise much suspicion because she usually slept late after a night out. According to the bodyguard, shortly after 3 pm, he checked on her again and observed her lying in the same position as before, leading to a further check, in which he concluded that she was not breathing and had no pulse. He said he subsequently called emergency services.

At 3:54 p.m. BST on 23 July 2011, two ambulances were called to Winehouse's home in Camden, London. Winehouse was pronounced dead at the scene. Shortly afterwards, the Metropolitan Police confirmed that she had died. After her death was announced, media and camera crews appeared, as crowds gathered near Winehouse's residence to pay their respects. Forensic investigators entered the flat as police cordoned off the street outside; they recovered one small and two large bottles of vodka from her room. After her death, the singer broke her second Guinness World Record: for the most songs by a woman to simultaneously appear on the UK singles chart, with eight.

A coroner's inquest reached a verdict of misadventure. The report released on 26 October 2011 explained that Winehouse's blood alcohol content was 416 mg per 100 ml (0.416%) at the time of her death, more than five times the legal drink-drive limit. According to the coroner, "The unintended consequences of such potentially fatal levels was her sudden death."