18 things you probably don't know about 'The Hills'
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- MTV's "The Hills" followed the dramatic and exciting lives of young adults living in LA
- Fans may not know about all the fake relationships and scouting that happened on the reality show.
- Several celebrities made brief cameos on the show, including Lady Gaga and Kim Kardashian.
MTV's "The Hills" ran from 2006 to 2010, but even the most dedicated fans might not know about the reality show's inner workings.
Read on for some surprising things you may know about "The Hills."
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