Rolling Stones fans tuned to the Sunday (4/1) episode of the hit series Mad Men might have assumed pitchman exec Raymond Geiger's suggestion that his agency should convince the band to turn Time Is On My Side into Heinz Is On My Side for a baked bean ad and the assertion the band had actually done a breakfast cereal commercial a few years earlier perfect sub-plot for the show airing on  April Fools Day. Turns out, the claim was true.  The Stones really did do an ad in the UK for Rice Krispies (video). 
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