I can't say all of them, because that's not true, but some of them sure, such as:

- One Direction

- Adele

Yeah.

I could argue both sides, but I am a redcoat, so I suppose this is the side I belong on. Judging them just as vocalists:

Team UK

Robert Plant

Matt Bellamy

Adele

David Bowie (who is very underrated as a singer, his voice spans something like 3 octaves, in every genre known to man)

Roger Daltrey

Annie Lennox

And maybe we could claim Freddie Mercury, though not technically British.

Team USA

Elvis Presley

Michael Jackson

Axl Rose (before he sounded like a frog on LSD, and before he started looking like an impression of Mickey Rourke's arse)

Aretha Franklin

Roy Orbison

Based on those two lists (just my taste), I'd go with team UK.

Depends on what type of music you're talking about if it's about popular culture both are crap :P but any other I would say so. England have muse come on you can't beat that ;)

I think british are better look at robert plant, fred mercury, adele, amy winehouse, mick jagger, florence welch, dusty springfield, ozzy osbourne... But just think abouth the miths: Beatles and Rolling Stones.

But I base my answer back to the British Invasion. The singers back then were better than the American singers.