Before Kenny Rogers became a country music phenom, he was a member of The First Edition, a group of refugees from The New Christy Minstrels who felt the need to branch out creatively. I think they achieved that and then some with Just Dropped In (To See What Condition My Condition Was In).
As musical exploits go, this one was a doozie. The song's guitar reverb and reverse riff at the intro - not to mention the insane vocals on the chorus, particularly at the end - established it firmly in the annals of psychedelia. Although Newbury intended it to be a cautionary tale against the use of hallucinogenic drugs, I'm not sure that's precisely how it was interpreted by all members of my generation!
Must-see TV in those days was the groundbreaking Smothers Brothers Comedy Hour, which regularly featured Kenny and the group. Brace yourself! The show was a fixture of my weekly television viewing circa 1967-69 until it was unceremoniously axed by CBS, which was gripped in the throes of censorship thanks to Richard Nixon's growing paranoia about the dangers of the First Amendment.