Certainly in '62, 63 pop stars were meant to be grinning empty headed dolts who answered stupid or standard mundane questions with a smile and a thank you. The Beatles tore that up from the start by happily playing the fool, speaking nonsensical gibberish (influenced by the goons), giving stupid answer backs and not taking it all too seriously. All in a very light hearted manner so no-one got offended. But they were also honest and capable of being serious when the situation warrented it.
A great example of how their humour opened doors is their first US Press Conference. What should have ...