Part of Me singer Katy Perry recently revealed she feels fat when she’s not wearing Spanx. “I feel like my [fat] is sticking out so bad right now,” she told Us Weekly at the UNICEF SnowFlake Ball. “I almost always wear [Spanx], but not tonight, and I feel it pushing out, making me look fat.” She revealed she would like to exercise more, but sometimes feels too lazy, adding, “I like to say I run on the elliptical for 30 minutes watching CNN, but I don’t do it often enough. So I’m just like, ‘Oh, I guess I’m not fitting into this Lanvin dress for these couple of months.'” Other celebrities such as Oprah Winfrey, Kim Kardashian, Tyra Banks and Katherine Heigl also have admitted to wearing the body-shaping undergarments. ~ Luxy Hariharan