Kathryn Dawn Lang OC AOE (born November 2, 1961), known by her stylized stage name k.d. lang, is a Canadian pop and country singer-songwriter and occasional actress. Lang has won Juno Awards and Grammy Awards for her musical performances. Hits include the songs "Constant Craving" and "Miss Chatelaine".

A mezzo-soprano, lang has contributed songs to movie soundtracks and has collaborated with musicians such as Roy Orbison, Tony Bennett, Elton John, The Killers, Anne Murray, Ann Wilson, and Jane Siberry. She performed at the closing ceremony of the 1988 Winter Olympics in Calgary, Alberta, and at the opening ceremony of the 2010 Winter Olympics in Vancouver, British Columbia, where she performed Leonard Cohen's "Hallelujah".