Heidi Montag, born Heidi Blair Montag on September 15, 1986, in Crested Butte, Colorado, is an American reality television personality and singer who gained notoriety in the mid-2000s. Rising to fame through her appearance on the MTV reality series The Hills, Montag became a prominent figure in popular culture, known for her dynamic personality and tumultuous relationships within the show’s narrative.

Montag's early life was marked by a passion for the arts, which she pursued while attending high school in Colorado. Following graduation, she relocated to Los Angeles to further her aspirations in the entertainment industry. It was in 2006 that her journey took a significant turn when she was cast in The Hills, a reality show that chronicled the lives of young adults navigating the complexities of friendship and career in Los Angeles. The series featured Montag alongside fellow cast members like Lauren Conrad, Audrina Patridge, and Whitney Port. As the series progressed, her relationship with Spencer Pratt became a focal point, ultimately leading to a public feud with Conrad that captivated viewers.

Montag and Pratt married in April 2009, solidifying their status as a reality TV power couple. Their relationship, often dubbed "Speidi" by fans, was characterized by its ups and downs, which were documented in various media appearances, including their controversial stint on the reality show I'm a Celebrity...Get Me Out of Here!. In January 2010, Montag ventured into music with the release of her debut studio album, Superficial. Despite the album's high expectations, it received critical backlash and failed to achieve commercial success.

In the years that followed, Montag continued to navigate the challenges of fame and public scrutiny. She became a subject of controversy after undergoing ten cosmetic surgeries in a single day, a decision that sparked widespread criticism and discussion on the pressures of beauty standards in Hollywood. In 2011, she participated in the reality competition series Famous Food, competing for a chance at a restaurant partnership.

Montag's reality TV journey continued as she and Pratt entered the British version of Celebrity Big Brother in 2013, where they competed as a single entity. Their dynamic was once again highlighted when they returned as All-Stars for Celebrity Big Brother 19. In 2025, Montag announced the release of her second studio album, Heidiwood, marking her ongoing commitment to her music career and artistic expression.

Today, Heidi Montag remains a recognizable figure in the entertainment industry, known for her resilience and ability to adapt to the evolving landscape of reality television and music. Through her various endeavors, she has maintained a presence that continues to engage fans and followers across multiple platforms.