From Bob Dearborn's The Olde Disc Jockey's Almanac, this little tidbit from 45 years ago today...
February 15, 1968…John Lennon, George Harrison and their wives traveled to India to study with the Maharishi Mahesh Yogi. Beatles bandmates Paul McCartney and Ringo Starr soon followed. Many of the songs for the Beatles' "White Album" were written during their stay in India.
One of those songs on the White Album was actually about the Maharishi, but John Lennon changed it to "Sexy Sadie" because he didn't want to be sued. It's a scathing rip job on the Maharishi, who Lennon eventually believed was a fraud.