Holly Montag will be joining the cast of the 'I'm a Celebrity ... Get Me Out of Here!', which already includes two Baldwins, Janice Dickinson and former "American Idol" contestant, Sanjaya Malakar. She replaces her sister Heidi Pratt, who has left the show. Holly has been on several episodes of "The Hills" after joining the show in season four, including this past season's finale.

I'm a Celebrity... Get Me out of Here! is a reality television show produced by ITV Productions for the ITV network in Britain. In it, celebrities live in jungle conditions with few comforts and have to earn human essentials.