pushpills

we've all heard it in some movie or tv show or something, but i cannot find it based on the lyrics. its kind of a tribal sounding song, it goes "mmm hey em ma ma em hey em ma ma emm heyyyy eyyyyahhhhhhhhhh"

i'm sure someone knows what i mean, do you know what song it is though? i need it for a little film project my ex gf and I are working on.