Here is the audio, video, and transcript.  Here is the episode summary:

Bob Spitz has written major biographies of the Beatles, Led Zeppelin, Bob Dylan, and now the Rolling Stones — but also, somehow, Ronald Reagan and Julia Child. In rock, his credentials were hard won: he started out hustling gigs for an unknown Bruce Springsteen for six years, moved on to handling Elton John’s American business, and spent long enough in the world to find himself jamming with Paul McCartney and chatting with Bob Dylan on a stoop in the Village. The Reagan and Julia Child books are harder to explain, and perhaps that’s the point—Spitz seems to do his best work when he has no business writing the book at all.

Tyler and Bob discuss how the Stones became so great so quickly, what they added to the blues, how their melodies stack up against the Beatles’, whether Exile on Main Street deserves its canonical status, which songs are most underrated, what Charlie Watts actually got out of playing in a rock band, the rise and fall of Brian Jones, how the Stones outlasted nearly everyone, the influence of Mick’s London School of Economics training, why popular music has lost its cultural influence, what we should still be asking Paul McCartney and Ringo Starr, whether the Beatles’ breakup was good for the world, how senile Reagan really was in his second term and whether he was ever truly a communist, how good a cook Julia Child actually was, his next book on Lennon’s second act, and much more.

Excerpt:

SPITZ: Mick, from a very early age, was an exercise freak.

As we know from my investigation in the book, Mick’s father was the Jack Lalanne of the United Kingdom. He had a television show, an exercise show like Richard Simmons, and he always had a great person to show off the exercises, young Michael. He would say, Mike, get down, show him 50 pushups. Mike, do 100 chins, and Mick would jump to it and do it. That man still has a 27-inch waist at the age of 83.

Keith, on the other hand, is a medical miracle.

And this:

COWEN: Mick once said his favorite economist was Friedrich A. Hayek. Do you know anything more about that?

SPITZ: I do not, actually. I think it’s incredible that Mick had favorite economists. We do know that Mick was a scholarship student to the London School of Economics, and that for two and a half years, he attended and got pretty good grades. He did fairly well. The one thing that amazes me about Mick coming out of that London School of Economics is this. After 1967, when Andrew Loog Oldham stopped managing the Stones, they have never had another manager. They’ve had some money managers, but as far as managers go, Mick Jagger was their manager.

And:

COWEN: How good a cook was Julia Child? That’s another of your biographies. Actually, how good was she?

SPITZ: She was great. She was a wonderful person, but here’s the little secret. Julia was a great cooking teacher, but not a very good cook. There were people who left her house—and John Updike told me this. He was a frequent guest with her. Corby Kummer, who was a wonderful food writer, told me this as well. They’d leave Julia’s house. They’d go to a little park around the corner, and they’d get physically ill. They’d get sick. Julia used too much butter, too much cream. She really had no reins on her when it came to using things like that.

Bob was excellent throughout, and I very much enjoyed his new biography of the Rolling Stones.