Their Satanic Majesties Request (1967)
Recorded amid the uncertainty and paranoia of the Redlands trial and the band's escalating drug use, Their Satanic Majesties Request was an ill-conceived Sgt. Pepper rip-off without any of the Beatles' wit, charm, or cohesion.
As Mick Jagger would later comment: "There's a lot of rubbish on Satanic Majesties. Just too much time on our hands, too many drugs, no producer to tell us, 'Enough already, thank you very much, now can we get just get on with this song?' Anyone let loose in the studio will produce stuff like that. There was simply too much hanging around. It's like believing everything you do is great and not having any editing."
The Stones' first artistic failure, the silver lining was that it set the scene for the greatest music of their career.