Twitter Lauren or contact the Hills. Her previous hairstylist would know the answer to that. If Lauren was wearing a wig in public, it's possible she started hair fall experienced, from too much dyeing. Kim Kardashian, Paris Hilton & Jessica Simpson now have their own hair extensions & wig labels. Do you think they too?
Many celebrities wear a wig or hair extensions, because they are a hot commodity, so LESS DAMAGING to their orig. hair. That way, they can have as many different styles as possible to keep up with the trend.
Xtina (she started wearing a baseball hat/wig when she had her head shaved, after she removed her tight braids).
Fashion models (where their hair are all similar)
Thousands of Dancers and entertainers of the world.