La Roux

La Roux ( lah-ROO, French: ) are an English synthpop duo composed of singer, keyboardist, co-writer and co-producer Elly Jackson, and co-writer and co-producer Ben Langmaid. Jackson describes their relationship as "very much a half and half sharing situation not like a singer producer outfit", but also recognises that due to her prominence, it may "look like a solo act". The supporting band members to the duo are Mickey O'Brien (keyboards and backing vocals) and William Bowerman (on drums).

source: Wikipedia