Katherine Jane Margaret Wood, known professionally as Katherine Ellis, born June 21, 1965, in Bromley, Kent, England, is an English electronica vocalist and songwriter. Ellis began performing at age 15, featuring on Less Stress's 1990 single “Don't Dream It's Over” under her maiden name, Katherine Wood, and working as a session singer for 4-2 the Floor and Back to Basics in 1994. From 1997 to 2000, Ellis fronted Ruff Driverz, performing on the single “Deeper Love”, which reached number 19 on the UK Singles Chart, and writing and performing on their 1998 single “Dreaming” as Arrola, which reached number 10. In 2008, Ellis joined the group Bimbo Jones, co-writing and performing on their studio album, Harlem 1 Stop, including the lead single “And I Try”, which reached Number 1 on the US Billboard Hot Dance Club Songs chart in October 2008. Ellis collaborated with artists including Freemasons, Roger Sanchez, Cerrone, and Lee Coombs, and contributed vocals to the track “Gravity” on the Academy Award-winning soundtrack for the 2013 film Gravity.