But she has also performed on XF UK sooooo many times in the past, and I seem to remember she tweeted Britney good luck with the XF judging roll a few months ago.
Stop acting like she is being shady. Y'all so thirsty.
She's just trying to piggyback the Voice viewers to her boyfriend's new show because it is right after. If it were the X-factor in the Voice's place, she would do the same thing for it.