Heidi Blair Pratt (nee Montag; born September 15, 1986) is an American media personality and singer. She came to prominence with her starring role on the MTV reality series The Hills from 2006 to 2010.
The series' second season saw Montag date fellow cast member Spencer Pratt. In November 2008, the couple eloped to Mexico, though later got married in the United States in April 2009. In July 2010, Montag filed for divorce after fifteen months of marriage to Pratt, but later called off the divorce.
Montag began working on her first studio album, Superficial, in 2007. It was released in January 2010. She currently appears in the VH1 reality TV series Famous Food.
In April 2007, Montag had some plastic surgeries - a breast augmentation, rhinoplasty, and collagen lip injections.