Questions like this are difficult to answer because the techniques used to treat a particular celebrity are not necessarily published in a book which leaves us to guess. IT is likely she underwent tip grafting, with possible defatting and/or steroid injections.
Not every patient is like all others, and different patients seek different results. There is often disagreement as to what constitutes a good or poor result, since so much depends on one's personal ideas of beauty. That is why it is so important for patients to discuss their ideals and expectations with their plastic surgeon before undergoing any procedure.