Why Are People Listening To Stupid Music?

Like Justin Beiber,Kesha,Usher,and some rappers that dont even make sense,some dont even rhime!!,some just repeat the same sh*t ...i mean look at rebecca black.FRIDAY FRIDAY and justin beiber BABY BABY ohhhh .What happen to snoop dogg slipknot metallica dr dre and my chemical romance sum 41 black veil brives led zeppeli shakira eminen nirvana sevendust ?????why are ppl listening to this weird nonsense pop music !!