OK I am a youngster (59) so I hope you 60's don't mind. I saw Its A Beautiful Day at the Fun House at Lake Tahoe in 1970. Also The Guess Who, Chuck Berry, The Carpenters and other shows before the July 4 riot that year that shut it down. The local police started a riot on the beach which spilled over to the Fun House. Then the fun was all over and they closed it forever.