according to wikipedia-
emo as a genre of music - includes bands such as weezer, jimmy eat world, death cab for cutie, etc.
the OLD emo as a genre of music referred to the performance, where the vocalist and/or other performers were over dramatic while playing.
emo as a trend - originated in france, includes the black hair over one eye, tighter pants, slip on shoes etc.
my favorite part: EMO MUSIC AND THE EMO TREND ARE COMMONLY MISUNDERSTOOD AS RELATING TO ONE ANOTHER.
yeah.