George Kalinsky has been Madison Garden's photographer since it opened in 1968 and has snapped all the major sporting events and concerts there.
Some of the results are currently on view at the Rock And Roll Hall of Fame in Cleveland. Live from Madison Square Garden: From the Lens of George Kalinsky runs through January 31, 2010.
The display includes John Lennon's last public performance, in November of 1974, with Elton.
The lensman considers the event one of the most important he has witnessed.
Below is an example of his work.