McAlmont was born on 2 May 1967 to a Guyanese mother and Nigerian father. His mother was a nurse and his father, a law student. He, his mother and sister moved to Gorleston on Sea, Norfolk, where his education continued at Peterhouse Primary School. In 1978 the family departed the United Kingdom for Guyana. The family resided with his grandparents in Lovely Lass Village Berbice, and with his aunt in Wismar, Demerara, moving onto the East Bank of the Demerara River at Grove and Craig. In 1978 David scored well on his Secondary School Entrance Examination and attended the Queen’s College, Georgetown, Guyana. David’s education continued from 1989 at Middlesex Polytechnic where he read Performing Arts on the BAPA programme before leaving to sign a publishing contract with Chrysalis Music in 1992, followed by a record deal with Virgin’s Hut Records two years later.

McAlmont first came to attention in the London band Thieves, who attracted early attention with the 1992 single “Through The Door”. Despite the release of a third single, “Either”, Thieves split acrimoniously in 1994 shortly before the release of their first album. Following legal wrangling, the album was eventually released as the debut David McAlmont album (under the project name and album title of McAlmont). Despite some positive press attention, much of it still focusing on McAlmont’s startling voice (Melody Maker journalist Taylor Parkes commented “One day he will open his mouth and a cathedral will fall out”), the album was not a commercial success.

McAlmont and Butler did not tour and made few public performances; including festivals such as T in the Park in 1995. They also performed “Yes” on the BBC TV show Later with Jools Holland. Another single, “You Do”, was released later that year, and peaked at number 17. Shortly after McAlmont and Butler went their separate ways.

The producer David Arnold then worked with McAlmont on a version of “Diamonds Are Forever”. They went on to work together in 1998 on McAlmont’s second album A Little Communication.

Saul Freeman went on to form the band Mandalay with Nicola Hitchcock. He and McAlmont were reconciled in 2000, but have not worked together again.

In 2001, Butler wrote some songs and reunited with McAlmont, and they were signed by EMI and created the album Bring It Back (2002) which spawned two single releases, “Falling” and “Bring it Back”. This time they were more conventional in their approach to the music industry, and took part in interviews, and completed a series of public performances throughout 2002.

In 2005, McAlmont released “Set One You Go to My Head” on Ether Records. The label folded at the end of that year. McAlmont performed material from that album at various jazz venues including Ronnie Scott’s.

In 2006 David joined the faculty at the Architectural Association Interprofessional Studio in London. He is currently Studio Master with the AAIS and Diploma Unit Master at the Eureka Unit.

In 2007, McAlmont provided backing vocals for Gabrielle’s album Always, with Paul Weller on a song called “Why” which sampled Weller’s “Wild Wood”. Butler approached McAlmont to provide backing vocals for Duffy on Rockferry and for Sharleen Spiteri. A Little Communication, his follow-up to the first McAlmont And Butler album was digitally reissued on 23 June 2008 on iTunes. A performance of the complete album was hosted by the London Jazz Festival on 16 November at The Jazz Cafe in Camden.

In 2009, McAlmont released The Glare, a collaboration with leading classical composer Michael Nyman. Each of the songs is based on a different news story from the year. The album received critical acclaim from several newspapers.

In February 2011, SFE records released a live McAlmont set (featuring Bernard Butler on three tracks) as a CD and DVD package entitled Live From Leicester Square.

In October 2011, McAlmont and Guy Davies announced their collaboration and the formation of Fingersnap. The first release comes in the form of the Smokehouse EP. McAlmont and Davies originally met back in 1997 and they previously worked together on the albums A Little Communication and Set One: You Go to My Head. The release of the Smokehouse EP was supported by live performances throughout the UK in November and December 2011.

In 2012 David decided to return to higher education and began a second degree in the History of Western Art & Architecture at the University of London’s Birkbeck College, which he completed in 2016.

In 2013 McAlmont fronted a four-piece band at the first of an annual series of live concerts titled Wall to Wall: Bowie, duetting with singer Sam Obernik at London’s Hideaway nightspot. Bowie classics were rearranged with a jazz twist by musical director Janette Mason who released an EP of them in 2020.

In July 2014, when David Arnold performed his debut live orchestral concert, at London’s Royal Festival Hall, McAlmont appeared as this former collaborator’s surprise guest vocalist – “my secret weapon,” said Arnold – for the songs, “Surrender” and “Play Dead”.

In 2014 and 2015, McAlmont teamed again with Bernard Butler to perform live at various venues, including the Lauren Laverne radio show. In 2016, McAlmont sang on the album Call Me Lucky by Alex Webb (musician) & The Copasetics; he has subsequently collaborated with Webb on a words-and-music show based on the music of Billie Holiday. In 2019 McAlmont again collaborated with Webb to publish a new album titled The Last Bohemians.