Katy Perry feels under pressure to be a role model.

The 'Roar' hitmaker said the responsibility makes her nervous even though she thinks she sets a better example than some of her rivals because ''everybody's so naked''.

The 29-year-old star told the 'Weekend Edition' show on America's NPR (National Public Radio): ''I couldn't tell kids when it's time for them to try things or do things. I mean, that's not my role. But, you know, it's funny. I do see myself becoming this inspiration out of default right now because cause it's such a strange world. Like females in pop -- everybody's getting naked. I mean, I've been naked before but I don't feel like I have to always get naked to be noticed. But it's interesting to see.''

Katy insisted she wasn't criticising her best pal Rihanna or 'Wrecking Ball' singer Miley Cyrus.

She added: ''I'm not talking about anyone in particular. I'm talking about all of them. I mean, it's like everybody's so naked. It's like, 'Put it away!' We know you've got it. I got it too. I've taken it off for -- I've taken it out here and there. And I'm not necessarily judging. I'm just saying sometimes it's nice to play that card but also it's nice to play other cards. And I know I have that sexy card in my deck, but I don't always have to use that card.''