[Photo by: California Department of Corrections and Rehabilitation]

A memorial was held for Charles Manson, and the service's "hippie vibe" was complete with guests gathering to watch the cult leader's cremation.

Plus, reports say those in attendance gathered around to sing songs by Manson, the Beach Boys and Guns ’N Roses.

Read more: Margot Robbie in talks to play Sharon Tate in Charles Manson-themed movie

As the Associated Press explains, around 20 to 25 people attended the memorial, with Manson’s grandson, Jason Freeman, planning to spread Manson's ashes “free in the air” somewhere.

Manson, who died back in November, was the leader of the Manson Family, a murderous cult who were connected with the murders of actress Tate, who was pregnant at the time, and six others in Los Angeles during July and August of 1969.

Manson has been in prison since he was found guilty of first-degree murder and conspiracy to commit murder in April 1971, following a seven-month trial, the NYT shares, with the family becoming a dark part of American popular culture. Manson served nine life terms in California prisons and was denied parole 12 times, CNN reports. 

Manson was originally sentenced to death, CNN report, but the death penalty was briefly abolished at the time in the state of California and he was sentenced to life in prison.