She wore some amazing tights with an elvis motif with fishnet detail on the live shows, Saturday 22nd October, I can’t find them anywhere! Heres a picture – http://www.google.co.uk/imgres?q=rhythmix+perrie+tights&um=1&hl=en&sa=N&rlz=1T4ACPW_en___GB366&biw=1280&bih=745&tbm=isch&tbnid=WhucsLgXY40cMM:&imgrefurl=http://www.dailymail.co.uk/tvshowbiz/article-2052734/X-Factor-2011-results-Tulisa-Contostavlos-parties-acts-show.html&docid=iXhP25nEDzRRUM&imgurl=http://i.dailymail.co.uk/i/pix/2011/10/24/article-2052734-0E81788900000578-470_468x569.jpg&w=468&h=569&ei=7vanTqS-MYme8gPeuImsDw&zoom=1&iact=hc&vpx=167&vpy=116&dur=733&hovh=248&hovw=204&tx=92&ty=112&sig=105612131596998154790&page=1&tbnh=125&tbnw=101&start=0&ndsp=28&ved=1t:429,r:0,s:0 Shes the one on the end with the curly hair.
Source:
http://www.myelvisworld.com/triva/where-did-perrie-from-x-factors-rhythmix-get-her-tights/