In “Glass Onion” from the 1968 White Album, Lennon references a number of the Fab Four’s recent hits. The lyrics drop nods to Beatles classics like “Strawberry Fields Forever,” “Lady Madonna ,” “Fool on the Hill” and “Fixing a Hole.”

The man who shot and killed Lennon, Mark David Chapman, now 70, is serving a sentence of 20 years to life in a maximum-security prison. Chapman was denied parole a 14th time in August, The Associated Press reported. His next parole hearing is February, 2027.

Legendary Beatles member John Lennon was killed on Dec. 8, 1980, at age 40. Here are 15 photos reflecting the singer's most memorable moments to honor his enormous life and legacy.