Steve Jobs: Jobs, co-founder and CEO of Apple Inc., once used LSD. He reportedly gave the drug credit for improving his creativity. He has been quoted as saying that acid was, “one of the two or three most important things I have done in my life.”

Bill Gates: In a 1994 Playboy interview, Bill Gates, founder of Microsoft, admitting to using LSD.

Cary Grant: Cary Grant was a dashing and popular stage actor. He would eventually participate in LSD studies, in an effort to discover the benefits or dangers of using LSD for these purposes. .

Jimi Hindrix: This very famous and much revered guitar player was a fan of doing drugs, including ecstasy. He would eventually die of an overdose under suspicious circumstances.

Jerry Garcia: Garcia, known most because of his membership in the popular group, The Grateful Dead (lead guitarist, vocalist and songwriter), experimented with all sorts of drugs, including LSD. He began taking the latter in the early part of the 1960’s.