An American pedal steel guitarist, from Bowling Green, Kentucky. He worked as a session musician in Nashville in the late 1950s and 1960s. He is most famous for his work with Neil Young, both in stage shows and on albums such as Harvest, Tonight's the Night, Comes A Time, Harvest Moon and Prairie Wind. He has also worked with Terry Reid, Todd Rundgren, Lonnie Mack, the Band, David Crosby, Graham Nash, Paul Butterfield, J. J. Cale, Linda Ronstadt, Warren Zevon, Ian and Sylvia, Hungry Chuck, Emmylou Harris, Willie Nelson, Waylon Jennings and Ringo Starr.

He is also known as the producer of Jewel's debut album Pieces of You and as a solo recording artist.

He toured with Crosby Stills Nash & Young on their 2006 Freedom of Speech tour.