 how many records are on that jukebox? Because everybody plays the same five or six records all the time. He went over and looked, and there was 100 records on the jukebox. And he thought, out of the 100 records, why do they keep playing those five or six all the time? And then he figured out that and said, well, maybe people just want to hear the hits. They don't want to hear this or that or whatever. They want to hear the same songs over and over. So he and Gordon McClendon talked on the phone and invented Top 40 Radio.