Lets start in chornological order here, shall we?
early 80's-90's - boyz 2 men, tevin cambell, etc.
90-y2k - backstreet boys
y2k-2010 - trey songz, chris brown, nikki minaj (can't lie, it has got some girls thinking of becomin bi) <-- rhymes
2010-yaw'mul qiyammah - lee dong gook, other asian niggaz?
jheeeeze