Why do non-Americans sing in an American accent?

The American accent in pop and rock music is ubiquitous. It has become the default accent for any aspiring artist to sing in, to the extent that it's virtually taken for granted and no one finds it odd.

But it is a bit odd. This episode attempts to unravel the question as to whether singing this way is physiological or sociological. In other words, is there something about the accent which uniquely lends itself to pop and rock; can you decide to sing in your own country's accent; do young singers feel the weight of cultural exceptions to sing this way; and is it all forms of singing or do other genres have an American accent issue also.

Join me for a medium-sized dive and an entirely reasonable debate.