American accents evolved from various influences, including British, Irish, Scottish, German, Dutch, and Native American languages. Over time, the interaction of these linguistic backgrounds, as well as regional influences and migrations, led to the diverse range of accents found in the United States today.

American from british/Irish descent.

Well, in my opinion, i think the British-Irish One Direction is more famous.

The American band One Direction changed its name to Uncharted Shores, but it is still less famous than the British-Irish band One Direction.

WHO CARES!

The real One Direction are American the British 5 are impersonator's.

Which pounds? Irish, British .... or do you mean in weight (American)?