Some popstars are mean and miserable: Jessie J

Singer Jessie J has claimed that some popstars are mean and miserable behind the scenes because they party too hard.
The 25-year-old singer said that she quit drinking alcohol a year ago and avoids parties in order to remain professional and focused on her career, reported Showbiz spy.
"I like my life to be pure and clean and organised, and I like to have had eight hours' sleep a night. I honestly don't think I'd be as successful if I was a party animal. Because I don't think my personality would be as focused and open as it is.
"I won't mention no names, 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," she said.