John Martyn, OBE (11 September 1948 – 29 January 2009) (born Iain David McGeachy) was a British singer-songwriter and guitarist. Over a 40-year career, he released 21 studio albums, working with artists such as Eric Clapton, David Gilmour and Phil Collins. He has been described by The Times as "an electrifying guitarist and singer whose music blurred the boundaries between folk, jazz, rock and blues".