John Lennon's son has emergency surgery for cancer - Paul McCartney O2 review: Energetic Beatles star, 82, honours John Lennon at epic show - Paul McCartney on how he's 'very emotional' to harmonise with John Lennon again on stage - John Lennon - 44 years gone. - Inside search for John Lennon's 'secret love child' using late Beatles star's PS20k tooth 44 years after assassination - Sean Lennon says album cover reveals how John Lennon felt about Yoko Ono: 'I think it's clear' - John Lennon's letter to Eric Clapton on forming new band set to sell for whopping amount - John Lennon's damning view on touring with The Beatles revealed in letter to Eric Clapton - John Lennon letter inviting Eric Clapton to join supergroup to be auctioned - Yoko Ono Wins Legal Battle Over John Lennon's Stolen Patek Philippe Watch