"O" is a water-themed stage production by Cirque du Soleil, a Canadian circus and entertainment company. The show has been in permanent residence at the Bellagio in Las Vegas, Nevada, United States, since October 1998. "O" was inspired by the "infinity and elegance of water's pure form," which pays tribute to the beauty of the theater. The music of "O" was composed by Benoit Jutras and features a mix of classical Western and world instrumentation, including Chinese violin (erhu), bagpipes, African guitar and harp (kora), Colombian guitar, cello, ancient woodwinds and a wide variety of percussion instruments. During the show, the score is performed by a live band situated behind glass walls above and to the side of the stage.