Washington, Jan 13 American singer/songwriter Katy Perry has offered advice to her female fans on how to always look sexy in photos.

Perry, who broke up with "Gym Class Heroes" star Travis McCoy, revealed at the Critics Choice Awards in Santa Monica, California, that she was very conscious of her posture.

"I'm really critical of my posture, it makes a big difference," Fox News quoted her as saying.

"And I try to suck my belly in. Everyone should do that whether you're on a red carpet or not.

"Even if you're just going out to dinner with your boyfriend you should try and suck it in," she added. (ANI)