Trivia:
- The original lyrics for this song were left behind after the broadcast on John's music stand and snapped up by an associate; in 2005 they were auctioned to a private collector for $1.2 million.
- This was the last Beatles song recorded before the untimely death of manager Brian Epstein, which ironically led to a great deal of love lost between the band members.
- George Harrison quotes this song in his own 1981 solo hit "All Those Years Ago," a loving tribute to John recorded and released in the months following his murder: "You point the way to the truth when you say all you need is love."
- This song was featured in the climactic final episode of the UK sci-fi series The Prisoner, as well as entrance music for Queen Elizabeth II during the UK Millenial celebrations of 1999. It was also sung by choirs across the kingdom in 2002 during the Queen's Golden Jubilee celebration.
- The American diaper brand Luv's has licensed a cover of this song for a 2007 ad, outraging many purists.
- This song was played at Al and Tipper Gore's wedding in May of 1970.
- Constantly asked in interviews whether the song's title is good philosophy, Paul McCartney once admitted, "Is love all you need? I don't know, really. I don't know what you need. I'm just some fella."
Covered by: John Bayless, Duster Bennett, Einstürzende Neubauten, Elvis Costello, Echo and the Bunnymen, Ferrante and Teicher, The 5th Dimension, Enrique Iglesias, Anita Kerr, Nada Surf, Oasis, The Royal Philharmonic Orchestra, Rod Stewart, Tears For Fears, Vienna Boys Choir