Why don't British singers have a British accent when they sing?

Lily Allen does.

Hunter on January 17, 2010, 7:57 am

And so does Morrissy, Johnny Rotten, Oasis, and many more.

punched on January 17, 2010, 1:14 pm

Never heard of the proclaimed, billy bragg or Ian dury

trez on January 17, 2010, 4:04 pm