Heidi Montag

Heidi Blair Pratt is an American reality television personality and singer. In 2006, Montag came to prominence after being cast in the MTV reality television series The Hills. The show chronicled the personal and professional lives of Lauren Conrad, Montag, and friends Audrina Patridge and Whitney Port. During its production, she briefly attended the Fashion Institute of Design & Merchandising and was "employed" by event planning company Bolthouse Productions. As the series progressed, Montag began dating fellow cast member Spencer Pratt, which ultimately ended her friendship with Conrad. Their ensuing feud became the central focus of the series, and was carried through each subsequent season.