'Bulimic' Gaga Strips to Counter 'Fat' Critics

Lady Gaga is stripping down to her skivvies to take on critics who have been beefing about her new poundage. The pop princess took the bold move as she also revealed that she has been battling anorexia and bulimia since the age of 15. "Today I join the body revolution to inspire bravery and breed some m$therf***ing compassion," she posted on her LittleMonsters.com web site, along with the underwear photos.

The media has piled on Gaga for her "meatier" look lately, and the singer spilled that she has gained 25 pounds, declaring: "I really don't feel bad about it, not even for a second." She's the second high-profile celeb this week to bare her struggles with eating disorders. Katie Couric just revealed her battles with bulimia. (More Lady Gaga stories.)