He touched the lives of millions during his tragically short lifetime, creating a music revolution as a member of The Beatles and as a solo artist.
On Wednesday night, John Lennon's continuing influence was on display as fans gathered to commemorate the 30th anniversary of his death.
Yoko Ono led the way in celebrating her late husband by performing in Tokyo (pictured). Vigils were also held in New York and Liverpool, the singer's hometown.
Click on photo to see how fans around the world are marking the anniversary
In a touching blog post, the Japanese artist said: "This year would have been the 70th birthday year for John if only he was here.
"But people are not questioning if he is here or not. They just love him and are keeping him alive with their love."
"I’ve received notes from all corners of the world to let me know that they were celebrating this year to thank John for having given us so much in his forty short years on earth."
The couple's son Sean Lennon also spoke recently to NME magazine about his father, describing him as "one of a kind."
The 35-year-old added: " Dad was completely happy to run the risk of not being understood. He just made the statements that he wanted to make."
"When dad did Give Peace A Chance or the bed-in he was ridiculed for it and it was seen as a joke. But the impact was great because he was a pop star who was rejecting everything about that life – and people respected him for it. He was one of a kind."