Anna Margaret Michelle Calvi is an English singer-songwriter and guitarist. Originally from Twickenham, Calvi began playing guitar as a child and studied music at college. Calvi worked as a guitar tutor while recording her eponymous debut album over a period of several years. The album was released in the United Kingdom in January 2011 to critical praise, entering the Album Charts at number 40 and later being nominated for the Mercury Music Prize and a BRIT Award.

Her second album One Breath was released on 7 October 2013 in the United Kingdom and United States through Domino Records. Calvi has gained critical acclaim for her voice, guitar playing and live performances.