In Reply to: Are you sure..... posted by Tommmo on Thursday, 19. April 2007 at 15:02 Bali Time:
Quote from Fred B. Eiseman, Jr. BALI Sekala & Niskala Volume 1: Essays on Religion, Ritual and Art, page 288:
"A second popular tourist show is the kecak, or monkey dance. This is a performance conceived and choreographed specifically for tourists, and the Balinese never put one on for their own purposes. But just as in the case of the barong dance, kecak has its roots in traditional Balinese dance and music."
If you google kecak dance you will find it was choreographed in the 1930's when Bali was starting to attract tourists.