DALLAS kingpin LARRY HAGMAN did more than "Dream of Jeanie" – his mind bending trips on LSD set his brain synapses ablaze! PLUS: Learn WHO turned JR on?!

Hagman,  best known as conniving Texas oilman J.R. Ewing on the newly rebooted Dallas, recalled his mind-altering experiences  recently under the influence of LSD at a psychedelic conference in Los Angeles sponsored by the Multidisciplinary Association of Psychedelic Studies (MAPS).

Hagman, who beat a lifelong battle with the bottle, said he was first turned on to "acid" by David Crosby backstage at a Crosby, Stills & Nash concert during the 1960s.

He recalled, "David … handed me a handful of little pills. I said what the (EFF)? He says 'This IS LSD'. It was the best going around at that time.

"This was before Blue Cheer and Windowpane. This was the original Owsley. He gave me about 25 pills. I said, well, how much should I take? He says, well, don't take more than one…."

Hagman called his first first acid trip "the most illuminating experience of my life."

 "I would highly recommend it for people who study and prepare for it and who are not neurotic or psychotic," Larry said.

"I don't know what it would do to psychotic people. I know what it does to neurotic people who can't handle that. They get terrified and do crazy things like jumping out of windows and stuff like that. That's happened to a couple of friends of mine."

If Hagman had his way, he would even slip a dose of acid to the politicos in D.C. to enlighten them.

 "I think it ought to be mandatory that ALL our politicians should do it —  at least once."