It was today in 1974, MSG, at an Elton John show. John and Elton were pals, they had made a bet. If John Lennon's "Whatever Gets You Thru The Night" (which Elton sang on) made it to #1, John Lennon would join Elton on stage in NYC. The song did go to #1, and John unannounced sang 3 songs with Elton, "Whatever," "Lucy in The Sky," and "I saw Her Standing There." John Lennon would never perform publicly again. John Lennon Last Concert