La Roux, are an English electropop "synth duo" band made up of singer and synth player Elly Jackson, daughter of The Bill actress Trudie Goodwin and co-writer and co-producer Ben Langmaid, with Jackson describing their respective roles as "very much a half and half sharing situation... ...not like a singer producer outfit", but also recognising that it often can "look like a solo act". Elly found a book of baby names in a bin. Within the book was the name "La Roux". 'La Roux' comes from the French for 'red-haired one', referring to Elly's distinctive hairstyle. Their music is largely influenced by 1980s pop music including Eurythmics, Depeche Mode, The Human League, Yazoo and Prince.

The first single 'Quicksand' was released by the Kitsuné Music record label in November, 2008 Polydor are set to release La Roux's debut album in 2009. Polydor will be releasing La Roux's second single 'In For The Kill' on 16 March 2009 and prominent dubstep producer Skream has made two remixes of the track. 'In For The Kill' debuted at number 11 on the UK Singles Chart on 22nd March 2009.

La Roux will be the support act on Lily Allen's upcoming UK tour.

La Roux gained fifth position on the BBC News website's Sound of 2009 poll. The Guardian newspaper's website, guardian.co.uk, featured La Roux on their new band of the day column. The Guardian also featured La Roux as one of the "Best New Acts of 2009" in January of that year.