Donald Trump's daughter IVANKA has hit out at comparisons between her and socialite Paris Hilton, insisting "I work my a** off". The 25-year-old works for her father, as vice president of development and acquisitions at his Trump Organization and is annoyed to be likened to the heiress and wannabe pop star. Ivanka says, "Paris and I don't hang out, but I know her. We both come from wealthy families. But that's really all that links us. I think there's something more accessible about me. Not relative to her, just being lumped into that heiress category. It's somewhat annoying. I work my a** off."