We may receive a portion of sales if you purchase a product through a link in this article. On Tuesday, Irina Shayk played a fun game of “Halloween costume or It-girl look” on her Instagram story.

Micro bras, string bikinis, mini skirts - you name it, Hailey Bieber is trying this season's tiniest trends. And that's before we even talk about her debuting her own spin on the 'tights as pants' ...