The Hills is a reality television series which originally aired on MTV from May 31, 2006 until July 13, 2010. The show uses a reality television format, following the personal lives of several young adults living in Los Angeles, California, but tends towards a narrative format more commonly found in scripted genres such as soap operas. The series originally followed the personal life of former Laguna Beach star Lauren Conrad and her friends' new lives in Los Angeles. After five seasons, Conrad left the series and was replaced by another former Laguna Beach star, Kristin Cavallari, beginning in the second half of the fifth season. The series concluded at the end of the sixth season.