Lee Scratch Perry arrived on stage sporting a blue beard and eccentric garb which appeared to be a form of badge-encrusted armour.
It didn't take long for the audience to work out he was totally bonkers.
For more than an hour the excited, sold-out crowd boogied to the rhythmic beats of the fantastic Mad Professor's mixes.
Perry's most significant role has undoubtedly been that of a producer.
He was instrumental in moving Jamaican music beyond the frenetic simplicity of the ska beat toward the bass-heavy, slow throb of the roots "riddim", thereby laying the foundations for contemporary reggae.
Yet Perry's long-lasting appeal seems to be just as much about his insanity as his genius.
Somehow, watching him fluctuate between moments of brilliance and grimace-inducing wails, I could see why.
Despite him being a touch unsettling, no one doubted they were in the presence of a legend.
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