Katy Perry may be one of the most glamorous A-listers around, but she ties together her look just like the rest of Us — with the help of nude Spanx.On Sunday, December 6, the 36-year-old entertainer posted a TikTok video showing off her crazy cool ensemble. Rocking a blue latex trench coat, the “Firework” singer struts her stuff with her hands in her pockets as key words like “power,” “attitude,” “style” and “sex” pop up on the sides.