Where does the "Ew Oh my God I literally cannot" song that people lipsync to come from?

I've seen people on youtube lipsync the words (to what seems like) the beginning of a song. The lyrics are making fun of white people/basicgirls/whatever-you-want-to-call-them and go, "Ew Oh my God I literally cannot uh, Oh my God, what?" So... what's the original song?

Link to example: https://www.youtube.com/watch?v=HRnWppuWIoI