Here YUKI sings "Drive My Car" by the Beatles with some guys I don't know. Like many other vocalists who use English (A good example is Kawase Tomoko, Tommy february/heavenly6 and the brilliant green) she started off not being very good at pronouncing English (think of 'Glamour Punks' YUKI-vox version from J-A-M) and then compare it to this video of "Drive My Car" and also her recent English snipets from solo YUKI songs. She got better and better over the years. :) I think her voice is just as great no matter what language.