British pop star Jessie J has lashed out at her fellow singers, accusing them of putting on a fake persona in public.

The Price Tag hitmaker has accused other artists of displaying a pleasant personality in the public eye, while they are mean and miserable off-camera.

The singer tells The Observer newspaper, "I won't mention no names (sic), but I've met artists who are so 'on it' when they're on camera, or on stage, so the audience and the media thinks that they're like that, and then you see them come off stage, and they're mean, they're miserable and they're late.

"I want everybody to think I'm a hard worker as an aunt, a sister, a friend, a daughter, a niece, everything. I want to be great at every role, because every role in my life is as important as being Jessie J."