Kristin Cavallari on Mischa Barton Joining ‘The Hills’

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Kristin Cavallari on Mischa Barton Joining ‘The Hills’

Kristin Cavallari on Mischa Barton Joining ‘The Hills’

Reality star Kristin Cavallari tells a WWHL caller with which of her “The Hills” castmates she’s still in touch and gives her take on Mischa Barton joining the reboot.