Well, I was sort of close. What the quote was is as follows: although there remains some controversy as to the exact quote.
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Quote Investigator: On June 9, 1975 People magazine published an article titled “The Jaggers†that included the following
remark from Mick Jagger, who was almost thirty-two years old.
"Jagger and the Stones have endured at the top longer than any other rock band, but as for the future, Jagger admits that it
could all suddenly end. “I only meant to do it for two years. I guess the band would just disperse one day and say goodbye.
I would continue to write and sing, but I’d rather be dead than sing Satisfaction when I’m 45.â€