Lest We Forget: The Best Of is the first greatest hits album by American rock band Marilyn Manson. It was released on September 28, 2004, by Interscope Records. The album was conceived by the band's eponymous vocalist as a "farewell compilation", and was originally going to feature a duet with Shirley Manson of Garbage. Upon its completion, neither singer was satisfied with the duet, and it remains unreleased. Instead, the band recorded a cover of Depeche Mode's "Personal Jesus" (1989), which became the only new track on the album and was released as a single. The deluxe version of the album included a bonus DVD containing sixteen music videos, one of which was the previously unreleased uncensored version of the music video for "Saint" (2004).

Marilyn Manson is an American rock band formed by namesake lead singer Marilyn Manson and guitarist Daisy Berkowitz in Fort Lauderdale, Florida, in 1989. Originally named Marilyn Manson & the Spooky Kids, they gained a local cult following in South Florida in the early 1990s with their theatrical live performances. In 1993, they were the first act signed to Trent Reznor's Nothing Records label. Until 1996, the name of each member was created by combining the first name of a female sex symbol and the last name of a male serial killer‍—‍for example, Marilyn Monroe and Charles Manson. Their lineup has changed between many of their album releases; the eponymous lead singer is the only remaining original member.