During the 60's there was a huge movement and jesus was the center of it - in word only. There was no repentance of sin or forgiveness, it was quite an unscriptural movement based solely on "adding" jesus to your present lifestyle. Drugs were made from god to be enjoyed, sex was good to have anywhere, and peace was top of the list because of military involvement overseas, the Vietnam war.
Yoko was certainly not christian, check her out on wikipedia. yoko ono, johns last wife. John was assassinated in 1980: Albeit a very nice fellow indeed with every good intention, but, it takes more than that to make a christian.
"Lennon revealed a rebellious nature and acerbic wit in his music, his writing, on film, and in interviews, and became controversial through his work as a peace activist. He moved to New York City in 1971, where his criticism of the Vietnam War resulted in a lengthy attempt by Richard Nixon's administration to deport him, while his songs were adapted as anthems by the anti-war movement. Disengaging himself from the music business in 1975 to devote time to his family, Lennon reemerged in October 1980 with a new single and a comeback album, Double Fantasy, but was murdered weeks after their release." wikipedia information.