In 2000, Ellis-Bextor collaborated with Italian DJ Spiller on "Groovejet (If This Ain't Love)", which reached number one in the United Kingdom and in 2015 became the UK's biggest-selling vinyl single of the millennium so far.

[3][4] Three of its four singles—the Cher cover "Take Me Home", "Murder on the Dancefloor", and double A-side "Get Over You" / "Move This Mountain"—reached top three in the UK.

[2] Its follow-up Shoot from the Hip (2003) reached number 19 in the UK and spawned two top ten singles, "Mixed Up World" and "I Won't Change You".

[2] Ellis-Bextor's third studio album, Trip the Light Fantastic (2007), peaked at number seven in the UK and its lead single "Catch You" reached the top ten.

Sophie Michelle Ellis-Bextor was born on 10 April 1979 in Hounslow, London[citation needed] to Janet Ellis, who was a presenter on BBC's children's television programmes Blue Peter and Jigsaw, and Robin Bextor, a film producer and director.

I've now found lots of like-minded weirdos, so it's OK."[8] Ellis-Bextor began her professional musical career in 1996 while singing lead vocals in indie band Theaudience.

The band released four singles, including the UK Top 40 hits "I Know Enough (I Don't Get Enough)" and "A Pessimist Is Never Disappointed", and one self-titled album (theaudience (1998)).

[9] Ellis-Bextor recorded a duet with Manic Street Preachers — "Black Holes for the Young" — as a B-side for their 1998 single "The Everlasting",[10] and in 1999, made an appearance on the Departure Lounge album Out of Here.

After Theaudience split, Ellis-Bextor collaborated with Italian DJ Spiller, in 2000, adding vocals to his track "Groovejet (If This Ain't Love)".

Her rework of Cher's "Take Me Home" reached number two, as did "Murder on the Dancefloor", which became Ellis-Bextor's biggest single and was on charts for twenty-three weeks.

[14][15][16] Her second album, Shoot from the Hip, was released in October 2003 and yielded two further top-ten singles, "Mixed Up World" and "I Won't Change You".

[2][17] Ellis-Bextor described the album as "more emotionally direct" and "a little more left-of-centre at times" than Read My Lips—"It has more of a live feel [...] It's still a pop album—with elements of disco, indie and rock.

Ellis-Bextor's collaboration with DJ Armin van Buuren, "Not Giving Up on Love", was released as a single in August 2010 in Europe.

[31][32] She said that her decision to leave Universal was spurred on by the departure of the head of Fascination Records, the sub-label to which she was signed following the release of "Bittersweet".

[35] She worked with Calvin Harris, Richard X, Dimitri Tikovoi, Hannah Robinson, Metronomy,[36] and Liam Howe from the Sneaker Pimps.

[39] She resumed touring internationally in 2011, playing venues such as Jakarta's SoulNation festival, as well as returning to Australia by performing in Sydney and Melbourne.

[40] She collaborated with French DJ Bob Sinclar on a track titled "F__ with You" (released in November 2011); it was included on his album Disco Crash and was a huge club hit in Continental Europe.

[44] Beginning in 2012, Ellis-Bextor worked with British singer and producer Ed Harcourt on a "more concept driven record", and possibly having as few as eight tracks.

[67][68] The Song Diaries first single "Love Is You", a disco track originally performed by Carol Williams, which is sampled on her early hit Groovejet, was released in August 2018.

[71] Guests have included Fearne Cotton, Caitlin Moran, Myleene Klass, Róisin Murphy, and her own mother Janet Ellis.

[72] The album was preceded by the release of a single, "Crying at the Discoteque", a cover version of the Alcazar song, which she had performed during her lockdown concerts in September 2020.

In March 2022, she embarked on her "Songs from the Kitchen Disco" tour of the U.K.[74] In July 2022, the singer revealed a new single, "Hypnotized", a collaboration with electronic artist Wuh Oh.

[76] On 8 February 2023, Ellis-Bextor revealed a new track, "Breaking the Circle", the lead single from her seventh studio album, Hana, which was released on 2 June 2023.

[81] Ellis-Bextor also collaborated with Robbie Williams and his electronic music project 'Lufthaus' on the track "Immortal", which is taken off of the group's debut album, "Visions, Volume 1".

[91] Following the resurgence of "Murder on the Dancefloor", Ellis-Bextor reportedly signed with Universal Music Group[92] and began working on her eighth studio album.

She was depicted as a female alien at the closure of the story singing the song "Supersonic", the last track on her third solo studio album Trip the Light Fantastic.

In November of the same year, she also launched the npower Greener Schools Programme, which aims to give schools in the UK a "green makeover" by providing free energy audits, implementing tailor-made energy efficiency measures to reduce their carbon footprint, and educating children on how to be greener.

[104] In September 2014 the Pretty Polly hosiery company announced that Ellis-Bextor was their latest "face and legs", and would be designing and modelling for them.

[110] In December 2022, Ellis-Bextor partnered with Vodafone to unveil its Pro II Broadband during a special Christmas concert in London.

[78] In October 2023 Ellis-Bextor was a guest celebrity judge in the episode Club Bangers of the British reality television series RuPaul's Drag Race UK broadcast on BBC Three.