Martin "Doc" McKinney (born August 27, 1971) is a Canadian-American record producer and songwriter. McKinney is a Grammy-award-winning producer. He was formerly one half of the duo (now solo act) Esthero. His work with fellow Toronto artist The Weeknd, whose McKinney-produced mixtapes "House of Balloons" and "Thursday", were freely released in 2011, was met with widespread critical acclaim. McKinney returned to working with The Weeknd on his third album, "Starboy", which he executive produced together with him. The album also won him the 2016 Grammy Award for Best Urban Contemporary Album.