<Tr> <Th_colspan="2"> Music video </Th> </Tr> <Tr> <Td_colspan="2"> "Leave a Light On" on YouTube </Td> </Tr> <P> "Leave a Light On" is a song by British singer - songwriter Tom Walker . It was released to digital retailers on 13 October 2017 . The song was co-written by Walker and Steve Mac . The song reached number one in France, and reached the top 10 in Austria, Wallonia, Germany, Italy and Switzerland, while reaching the top 40 in Australia, Flanders, Poland and the Netherlands . The song reached number 7 in the UK and number 34 on the Irish Singles Chart . </P> <P> An acoustic version of the track, arranged and produced by Cliff Masterson was featured in the SONY Bravia TV advert . </P>

Who sings i'll leave a light on