Another Montag has just landed on I'm a Celebrity, Get Me Out of Here!

An insider tells Life & Style that Holly Montag, sister of The Hills' Heidi Pratt, has just arrived in the Costa Rican jungle where the NBC reality show takes place. Holly has passed the medical and psychological tests, says the insider, "and she's now landed in the jungle."

Heidi and her husband, Spencer Pratt, are contestants on I'm a Celebrity, in which 10 celebrities compete in survival challenges to win money for charity.

No word yet on what Holly's role will be.

Photo Credit: Retna