Look, in no way were The Beatles ever influenced by taking acid, right? I mean…ummm… ok. Initially reluctant to try LSD, McCartney eventually did so in late 1966, and took his second “acid trip” in March 1967, with Lennon, after a Sgt. Pepper studio session. He later became the first Beatle to discuss the drug publicly, declaring, “It opened my eyes … [and] made me a better, more honest, more tolerant member of society.” The interview below recorded on June 19, 1967, a day after Paul’s 25th birthday. Their album Sgt. Pepper’s Lonely Hearts Club Band had been released three weeks prior on June 1. Music, and the use of drugs, were forever changed.