Sandy Mason Theoret (December 18, 1939 – April 1, 2015) was an American country music singer-songwriter and musician. Apart from her numerous songwriting credits, she was also a pianist and guitarist, and provided backing vocals for other artists. In 1967, her single “There You Go” reached No. 64 on the Billboard country chart.
Mason gained biggest success as a songwriter. In 1979, her song “When I Dream”, recorded by Crystal Gayle, reached No. 3 on the Billboard Hot Country Singles & Tracks chart. In 1998, the song “Two Piña Coladas” recorded by Garth Brooks reached No. 1 on the Billboard Hot Country Songs.