In the Hall of the Mountain King (Norwegian: I Dovregubbens hall) is a piece of orchestral music composed by Edvard Grieg for the sixth scene of Act II in Henrik Ibsen's play Peer Gynt, which premiered in Christiania on February 24, 1876. It was originally part of Opus 23, but was later extracted as the final piece of Peer Gynt, Suite No. 1, Op. 46. Although a performance of the full piece runs to slightly less than 3 minutes, its easily recognizable theme has helped it attain iconic status in popular culture, where it has been arranged by many artists.