This is Bad Romance by Lady Gaga:

http://www.youtube.com/watch?v=qrO4YZeyl0I

Listen to the section from 47 seconds to the 1 minute mark. Those lyrics are the melody are lifted directly from another song, right? Because when I first heard this track I recognised them, but I couldn't remember which song, and Google isn't helping either.

HELP ME, please, for the sake of my sanity.