Heidi Blair Pratt (née 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. Montag has also appeared on I'm a Celebrity... Get Me out of Here!, VH1's reality series Famous Food, and has released an album, Superficial.
In 2006, she began dating Spencer Pratt. In November 2008, the couple eloped to Mexico, though later married in the United States in April 2009. In July 2010, Montag filed for divorce after fifteen months of marriage to Pratt, but called off the divorce in September 2010. <Source>