In 1983, some of the greatest rock musicians of all time came together for a special cause.  There was a concert in England for Action into Research for Multiple Sclerosis (ARMS).

The first show featured Eric Clapton, Jimmy Page, Steve Winwood, and Jeff Beck.  After the first concert, Clapton, Page, and Beck came to the United States for a handful of shows for ARMS.

The concerts featured individual sets from each musician followed by a group jam.  A few videos of the shows exist on YouTube.

First, watch Jimmy Page play an instrumental version of Stairway to Heaven.  He is eventually joined by Clapton and Beck.  Then, watch all three guitarists jam on Layla.