Spencer William Pratt (born August 14, 1983) is an American reality television personality. In 2007, he began dating Heidi Montag, a primary cast member of the reality television series The Hills and came to prominence after being cast in the… Spencer William Pratt (born August 14, 1983) is an American reality television personality. In 2007, he began dating Heidi Montag, a primary cast member of the reality television series The Hills and came to prominence after being cast in the series. A feud between them and Montag's fellow cast member Lauren Conrad became the central focus of the series and carried on through each subsequent season.
The couple married in April 2009, and later that year made controversial appearances on the second season of I'm a Celebrity...Get Me Out of Here! In 2013, Montag and Pratt competed on the eleventh series of the British version of Celebrity Big Brother, and returned to compete on the nineteenth series in 2017. In 2026, he published a memoir entitled The Guy You Loved to Hate: Confessions from a Reality TV Villain.
After his home in Pacific Palisades was destroyed in the Palisades Fire in January 2025, he sued the city of Los Angeles and pushed for an investigation into California Governor Gavin Newsom and Mayor Karen Bass. On the one-year anniversary of the fire, he announced his intent to run for mayor of Los Angeles in 2026. Pratt finished third in the 2026 Los Angeles mayoral election primary and did not advance to the general election.
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