Photo of the Day: OMG! Hilary Duff on ‘Gossip Girl’!

Hilary Duff and Penn Badgley on the set of ‘Gossip Girl.’

The former tween star will guest star on the new season as Olivia Burke, a fictional movie star who tries to join the real world by attending NYU - and hanging out with the richies of the Upper East Side. She will become roomies with Vanessa and possibly have a love interest in the gang.

Watch a preview of the new season of ‘Gossip Girl’ on Fancast

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