Swift's rep, Tree Paine, tells PerezHilton.com:
Wow. Wow. Wow.
Kanye is straight-up INSANE!!!!!
Who wins between pyrotechnics and lasers? Rita Ora, obvi!
Ch-ch-check out the video (above) to see the soulful singer switch gears - and outfits- to rock a medley of R.I.P. and How We Do on X Factor UK finale!
She def gets our vote! She can't win because she's already a star? Well, that seems a little biased!