95% of it is shit. It takes the old pop genre, and shits it down a drain. This kind of "music" is aimed at the target audiences of teens and kids who don't appreciate other kinds of musics.
To a
mainstream pop fan, anything that contains yelling or screaming is for emos who "cry in teh corner
whill we give
boys a head".
If you hear mainstream pop being played, destroy the device playing it and you'll save your sanity.