We all love a celeb fash off, so we what's to say we won't love a celeb boob off?
Plus, it's Sunday there's not much on telly and we are bored.
Katy Perry looked absolutely fab in her plunging floral gown at a charitable 'do raising money for autism.
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We are sure everyone was feeling much more generous after gorge Katy perked up proceedings.
However, when we managed to tear our eyes away from Katy's neckline, we were greeted with a rather pale complexion.
Bit of bronzer would hardly have gone amiss, eh?
Meanwhile, Nicole's cleave was in aid of a dinner at the Old Vic in London ahead of this weekend's X Factor live shows.
Nicole looked as stunning as ever in a curve boosting basque and structured blazer.
We want to know if she ever has made a fashion faux pas? She certainly hasn't here and just check her out at last night's X Factor!
But the question is: whose booby airing fashion did you rate the most: Katy or Nicole?