Most recent British Male winners include Sheeran and Bowie, apart from them:
Ben Howard
James Bay
Plan B
Dizzee
Would you say these have done well in the USA?
Same question for the females, Adele and:
Emili Sande
Paloma Faith
Ellie Goulding
Laura Marlin
Lilly Allen
It looks to me Our Ed and Our Adele are the exceptions (Bowie is obviously Bowie)