Evidence from empirical corpora and perception studies confirms that English-language vocalists across different regions routinely adopt an Americanized accent, known as Pop Song English, as a supralocal performance norm.
The claim addresses whether English-language vocalists adopt an Americanized accent when singing due to phonetic and stylistic conventions. Papers [2] and [5] directly study this phenomenon, terming it 'Pop Song English' and demonstrating through acoustic and perceptual analysis that artists outside the US (such as New Zealand performers) adopt Americanized pronunciations as a supralocal norm in popular music. There are no refuting papers.