British English accent is easily noticeable when heard spoken. Why is it not easily noticeable, if at all, when heard sung? This is true for any language, I think. Local accent are hard to detect when people are singing.

A derived question: if people speaking the same language but different accent sound similar when they sing, what is the accent they use when they sing? Would it be the one closer to one of the local accents? Would it be a unique accent all together?

sometimes it's because british musicians will emulate American ones. I nkow that's the explanation behind the Beatles, Paul McCartney once gave an interview where he described how they would try to sing like their American musical heroes. there are times whne it's noticable, like Oasis. Sondre Lerche definitely has a Norwegian accent when he sings.

i have an extremely strong brooklyn accent (so strong that everyone comments on it, even my parents, and i can't even understand what i'm saying) and you can definitely hear it when i sing. i think if you want a different accent when you sing, you'll have to try hard, it won't come naturally. at least that's the way it is with me.

It does depend on the person. But because singing follows different pronounciation rules than the other languages, the sound changes. The notes are absolute, and when drawn out most pronounciation actually dissapears. So, if you're singing "right" your "accent" "dissapears".

I like my accent, it's the "can't pronounce jack shit right" accent. "It's pronoonce!"

but it only applies to English. when people sing in their native languag you can hear the accent clearly. like Serge Gainsbourg singing in French. he has an accent. so do Israeli singers when they sing in Hebrew. I have an Israeli accent when I sing in Hebrew (and when I speak it, obviously). so maybe the U.S. just has a monopoly on the English language or something.