LuisMa, on Aug 27 2009, 10:18 AM, said:
I'm not a native American, but I've studied Linguistics and have been a phonology professor for years, so here's my take on your question.
All sorts of English are not the same and it's not about preference of pronunciation. It's about dialectal variation. A dialect is the variation of a language and it may occur because of regional, ethnic, or social aspects. Then, of course there's everyone's idiolect, which is the personal way of using a language, which also has to do with pronunciation (language problems, aphasia, etc, etc).
I agree also with imgoingtobiteyoure_face that there is as well stylistic variation. Take for instance the song "Ten Days," where Celine emphasizes the schwa sound getting to a close latin a. That's style.
There are also many songs by British artists who sound American, but others whose accents are pretty noticeable, haven't you seen that? Some artists also are produced in a way that their accent sounds as mainstream as possible; for example I loooove Cheryl Cole's accent (she's a member of Girls Aloud). She pronounces the i diphthong /ai/ as /ei/: mine as /mein/ inclined as /incleined/, and I was just carefully listening to her songs to see if she also used her accent, but she didn't.
Hope it helps.
Ohhh, I dislike Cheryl Cole's accent immensely! She's sounds typical of an un-educated person.
In British English, people who pronounce Rs noticeably tend to be from lower to lower middle-class backgrounds. Like typical English chavs or scallies or pikeys, whatever you want to call them. Regional accents like Gloucestershire and Somerset have harsh-sounding Rs and makes them sound like farmers.
Middle to upper-class people tend to substitute Rs with 'Ah' sounds.
I have noticed though, that some British singers, (except Lily Allen, who also has a terrible accent) sing with American accents. Maybe it's just to be fashionable?