Lady GaGa hates casually dressed celebrities.

The 'Telephone' singer - who is famed for her eccentric fashion sense - believes stars should make an effort when they appear at red carpet events as she thinks it's something the fans deserve.

She said: "I think you should look nice all the time. When I meet celebrities and they're in casual clothes, I'm always like, 'Whaaat?' I don't mean to be judgmental, but it would do them better to be who they really are, all the time. When I get out of a car and there are 30 fans waiting for me, I know I'm dressed the way I should be. There's a reason they have that emotional reaction."

The 24-year-old star also admitted her image is highly sexed but denied rumours she buys her clothes from sex stores.

She told Britain's OK! magazine: "Everybody loves sex. I would love to be introduced to one person on the planet that does not love sex.

"I don't buy my clothes from sex shops. I just recently have had a love affair with S+M clothing and masks as I love the idea of telling stories with no face. I believe in some things very strongly and that is the power of showbiz."