Singer Mariah Carey too has joined slim debate and strongly believes that sizes zero models should not be banned. Speaking at a reception by a fashion label in London, the 36 years old music star, who is the new ambassador for the brand, said that there should be no standards set. She added that there was nothing wrong with being slim as long as people are not doing harmful things to achieve size zero. “There should not be a president. That cannot work if you are naturally a size zero. As long as it’s not leading people to do harmful things to them to achieve that, then it;s fine.” she said.