Browsing the internet I found this:
First US show for Cream and The Who that most fans don’t know about….
………Simon & Garfunkel are also billed on the poster:
The shows took place over 40 years ago in 1967 from Saturday March 25th to Sunday April 2nd at the RKO 58th Street Theatre in Manhattan. There were five shows a day starting at 10 in the morning and lasting till after midnight.
read the full article here http://songheads.com/?p=93#more-93

