75th Anniversary of John Lennon's Birth to Be Celebrated Around the World Today

The former Beatle was killed in 1980.

A variety of events have been lined up around the world to pay homage to Lennon and mark the 75th anniversary of his birth.

The memorial is a white stone monument that projects a light beam into the sky, and promotes the "imagine peace" message that Lennon championed during his life. The tower remains lit until December 8, the anniversary of Lennon's death.

In Lennon's hometown of Liverpool, several events have been lined up in his honor. At the famed Cavern Club, where The Beatles played many of their early gigs, a number of groups will perform tribute sets in John's honor, including The Original Quarrymen, Lennon's pre-Fab Four band.

The Quarrymen also will perform at an afternoon service held at St. Peter's Church that will honor Lennon, as well as include the unveiling of a refurbished grave for his uncle George. The city also is hosting a park walk that will take fans to various Liverpool sites where Lennon used to spend time when he was young.

Lennon was only 40 years old when he was killed by a fan on December 8, 1980.