Selena Gomez Pleads the Fifth When Asked About Katy Perry/Taylor Swift By Andy Cohen

Courtesy of Bravo
Selena Gomez on "Watch What Happens Live."

Selena Gomez may have played the villain in "Bad Blood," Taylor Swift's squad-defining single/music video -- but the real target of the song's vitriol (according to popular myth) is Katy Perry.

Selena Gomez Hugs It Out With Nemesis Taylor Swift in 'Bad Blood' Behind-the-Scenes Clip

Gomez would neither confirm nor deny the song's subject, though, on last night's episode of Watch What Happens Live (Oct. 18) -- which really just adds fuel to the fire. Gomez answered a few more tough questions (Nick Jonas is apparently a "0" on Andy Cohen's imagined gayness scale) before revealing that Chris Evans is her celeb crush

Watch the clip below: