Sarah Joyce (born 3 June 1979), better known by her stage name, Rumer, is a British singer-songwriter. Supported by leading music industry figures including Burt Bacharach, Elton John, Carly Simon, and Jools Holland, Rumer was nominated for two Brit awards on 13 January 2011.

Her debut album, Seasons of My Soul, released in 2010, peaked on the UK Charts at #3, was certified platinum in 2013 having sold over one million copies, and was listed at #26 in the Official Top 40 Biggest Debut Albums of the Decade in 2019. Rumer's voice has been described by The Guardian and many others as being reminiscent of Karen Carpenter. Her stage name was inspired by the author Rumer Godden. Boys Don't Cry, released in 2012, peaked on the UK Charts at #3. She has performed at several festivals such as Glastonbury Festival. Her album This Girl's in Love (A Bacharach & David Songbook) was released in November 2016. In August 2020, she released her fifth album, Nashville Tears (The Songs of Hugh Prestwood).