John Lennon's final concert performance featured a duet of "Whatever gets you thru the night" wth wht musician

Answer 1

Elton John. It was at Madison Square Garden in NYC on November 28, 1974. The pair sang duets on Whatever Gets You Through The Night; Beatles classic Lucy In The Sky With Diamonds; and I Saw Her Standing There. Not only was it a first for the two acts but was the first Lennon live appearance in years. Lennon is reported as being terrified before going on and the thunderous reception almost brought him and Elton to tears.