The Planets is a symphonic suite written by Gustav Holst between 1914 and 1916. The piece is written in seven movements: one for each of the known planets in Earth's solar system. By far Holst's most popular work, the music was a success with audiences beginning with its first complete public performance in 1920. Since that time, The Planets has been recorded by a number of world-renowned orchestras and has found many uses in popular culture, making it one of the most recognizable pieces of classical music.