You mean English, right? You wish to speak like the Queen, with, "Jolly good, dear boy!" n' "spiffy!"?
aww.. i'm sure you'll get one soon enough. Try singing like a britt and talking like one, maybe then you'll get an accent. ;D
From the top of my head Bloc Party Hadouken! The Fratellis Does It Offend You, Yeah? Foals Muse Late of The Pier Klaxons xD;
Listen to Lilly Allen, you'll be a native in no time =D Also, I live in Britain and haven't heard of half of those bands ._. HADOUKEN ARE AWESOME, I AM GOING TO GO LISTEN TO THEM NOW D: