From november 11th though 28th of 1994, the historic first beatles reunion sessions are held, with work beginning on to producer jeff lynne's cleaned up new version of the song, george adds bluesy slide guitar, he and paul play acoustic guitars, paul adds bass and doubles john's original piano parts, ringo's on drums, and vocals are added by all three of them.

The historic first Beatles reunion sessions were held with work beginning on John Lennon’s late 1970s demos for the songs “Free as a Bird” and “Real Love”.

Explanation:

In 1994, the three Beatles who were still alive, approached producer Jeff Lynne and asked for help to produce new music from improperly preserved mono tapes of some demos that belonged to John Lennon, and which was given to them by Yoko Ono. The songs that were produced as a result of the reunion were “Free as a Bird” and “Real Love”.