Demi Lovato says it's ''difficult'' being a celebrity.

The 'Neon Lights' hitmaker - who suffered from an eating disorder in the past - thinks it's hard for famous people to feel confident with their body as they are constantly criticised.

When asked for her opinion on celebrities Photoshopping their pictures, she said: ''It's not something I wish people would do, but for the celebrities that do it, I don't blame them. And I don't blame people for getting plastic surgery either if they are in the public eye.

''It's difficult to be a celebrity and to have that many more people hating on your pictures ... I would like to see a future where people are able to accept themselves for who they are and what they have. But listen, I do photo shoots and they get Photoshopped, so I can't hate on it.''

The 22-year-old singer has been using photo-sharing site Instagram to encourage women to ditch makeup by reviving the #NoMakeupMonday trend.

Speaking to Natasha Bruno for Canada's The Kit magazine, she said: ''Instagram has a way of making people's lives feel super glamorous. But it gets to a point where all you're seeing is posts that have so much makeup. I wanted to put it back out there that you don't have to put on all that makeup to be beautiful.''

In addition to availability on thekit.ca, ''On Demi-Pointe'' can be found as a feature in The Kit's Body-Confidence Special edition in the Toronto Star on Thursday, April 30; in Ottawa Citizen, Edmonton Journal and Calgary Herald on Friday, May 1; and in Vancouver Sun and Montreal Gazette on Saturday, May 2.