According to this advertisment (Daily Mail) Jerry Landis would be performing during a live broadcast at WNTA in Rockford, Illinois, at Pallisades Park.
The single that was released at the time was:
I’d Like To Be (The Lipstick On Your Lips) / Just A boy released on Warwick Records #588
Paul Simon - 'Time it was...it was' 
Btw Paul just played on Maui on Friday in a small club as a benefit for Lahaina. He was joined by Pat Simmons of the Doobie Brothers.
Hi thanks for the heads-up. I put up a new post about it.