Video: 'BED PEACE starring John Lennon & Yoko Ono' (June 1, 1969, at 8:03-20:49)

(Sunday, June 1, 1969; during the Vietnam War) — John Lennon of The Beatles and his wife, Yoko Ono, clashed with Al Capp today as the satirical cartoonist visited the couple as they continued their second week-long bed-in for peace in room 1742 of the Queen Elizabeth Hotel in Montreal.

Video: 'John Lennon blows his top at Al Capp (Montreal, 1969)'

Capp introduced himself with the words “I’m a dreadful Neanderthal fascist. How do you do?” and later sarcastically congratulated Lennon and Ono on their Two Virgins album cover, in which they appear together in the nude.

“I think that everybody owes it to the world to prove they have pubic hair. You’ve done it, and I tell you that I applaud you for it,” he said.

Video: 'imagine.john.lennon.1988.' (June 1, 1969, at 56:52-1:02:27)

The Lennons were also visited today by comedian and civil rights activist Dick Gregory.

At one point today, about 200 hippies marched to the hotel in an effort to see John and Yoko, leaving a “love-in” being held at Fletcher’s Field. The group climbed to the 17th floor via a back stairwell, but only one representative was permitted inside the suite. Olga Naumenko, 15, was given two bouquets of white flowers and told to go back to the park.

Video: 'John & Yoko's Year of Peace (CBC TV) (2000)' (June 1, 1969, at 20:15-23:12)

Meantime, Montreal studio owner André Perry added to the vocal choir and a heavy thumping backbeat today to complete Lennon’s recording of “Give Peace a Chance” at Les Studios André Perry in Montreal.

Video: 'John Lennon - Give Peace A Chance (Rough Mix)'

The bulk of the track, including Lennon’s vocal, had been recorded the night before at the Queen Elizabeth Hotel for release as a single by on July 4, 1969.

Video: 'Give Peace A Chance'

The song quickly became the anthem of the anti Vietnam-war and counterculture movements, and was sung by half a million demonstrators in Washington, D.C. at the Vietnam Moratorium Day, on Nov. 15, 1969.

Video: 'Give Peace A Chance - Plastic Ono Band'