The Sleeping Beauty is a ballet in a prologue and three acts to music by Pyotr Ilyich Tchaikovsky, his Opus 66, completed in 1889. It is the second of his three ballets and, at 160 minutes, his second-longest work in any genre. The original scenario was by Ivan Vsevolozhsky after Perrault's La belle au bois dormant, or The Beauty Sleeping in the Forest; the first choreographer was Marius Petipa. The premiere took place at the Mariinsky Theatre in St. Petersburg on January 15, 1890, and from that year forward The Sleeping Beauty has remained one of the most famous ballets of all time.