American singer Katy Perry has no worries about her weight and claims she doesn't need to work out because her hectic schedule keeps her in shape. The I Kissed A Girl hitmaker, who is known for her skimpy stage outfits doesn't need to work hard to maintain her figure, but thinks she will be more prone to putting on weight as she gets older, Contactmusic reported.

"I don't feel pressure, no, as I know I'm kind of voluptuous and I've always been that way. Saying that, I'm young and metabolism is on my side and my schedule is so crazy that I lose weight from the intensity of it. But if you ask me that question in five or six years and I'll probably have a different answer for you," Perry said.

However, the 25-year-old singer, who is engaged to British comedian Russell Brand is continuously told to go for a healthy diet by her older sister.

"My sister makes me watch what I eat. She's a pescatarian, a vegetarian who eats fish, and she's lost so much weight from being that. She'll scream at me if some of the crew on my tour get hot pizza for a snack and I want some. Sometimes I can grab a slice, but if my sister sees me, I get a verbal lashing! I eat secretly in the corner - my one pepperoni slice," Perry said.