Drunken Tiger does both English and Korean and sometimes a mix, but it's not fobby-English; they're all from L.A. If you heard their English only tracks, you probably wouldn't be able to tell they were Korean. The group is composed of like 2 Korean guys, this half-Korean dude, and a Phillipino guy in there too.
They're really good, and it's not at all pop-ish.
For more pop-rap stuff, check out Y.G. Family, which is composed of members Jinusean, 1TYM and Masta Wu. I don't like their stuff as much.