This week's newspapers carry obituaries for Jack Good, the TV producer behind Six-Five Special and Oh Boy! who reputedly helped launch the early career of Cliff Richard. In addition to playing a very important part in the UK's musical revolution of the late fifties and sixties, he was also a TV and film actor and producer of musicals such as Catch My Soul. He was himself the subject of a West End musical, Good Rockin' Tonite, in the 1990s.
The reason for bringing this up is that Jack Good, though born in West London, grew up in PG and went to grammar school in Wood Green.
There's a pretty detailed obituary in the Guardian, which includes the "I prefer vulgarity" quote. The obituarist (Richard Williams, no less) writes that "In the middle of the 1950s, the era of the juke box and the teddy boy, he responded instinctively to the aesthetic of the new music and grasped the importance of the revolutionary culture that it fomented."