Animate South Park What Film/story Is South Park Spoofing In The Episode "Britney's New Look"?

What film/story is South Park spoofing in the episode "Britney's New Look"? - animate south park

"Britney's New Look" is a consequence 1202 (# 169) of the cartoon series South Park was delivered 19th March 2008. [1] I wonder whether it is a parody of a movie, if at all. I know that an invasion of the Bodysnatchers reference, but I think the "victim of his harvest for the" thing ". Thanks!