It's no coincidence that "artofcounterpoint" chose the Lady Gaga song "Bad Romance" to write a fugue upon. The song itself directly quotes Bach's Well-Tempered Clavier, Book 1. Compare the theme of Fugue #24 in B-Minor to this: https://www.youtube.com/watch?v=qrO4YZeyl0I

(I've been told that the album release of the song doesn't have the same intro).

It's Bach! Lady Gaga starts her song off directly with Bach's theme.