Is that whole thing recorded, or do people really do that live? Nope, recorded... umm...no. That's the crowd chanting TULO and clapping. I've been to about 50 Rockies games the past two years. I inquire because someone who went last year told me it was a mixture of recorded and live crowd chants, but I wasn't quite sure. The initial clapping and rhythm is recorded and you are right the Rockies fans have turned into knowledgeable and appreciative fan, not on the scale Cubs/Cards/Bosox fans are but they are getting there, especially if the Broncos have another down year